April wrote: Before they made Tess the show's biggest villain by having her kill off Alex, I actually noticed some similarities between her and Maria that I think might have allowed them to be friends.
but before we discovered that she was the villain Maria already hated Tess and Tess ignored her.
I never noticed any similarities between Tess and Maria. Mostly because the writers developed Maria and made me see her feelings about things while i know very little about what Tess liked or not and even those scenes are inevitably tainted by her true colors.
Especially in the Christmas episode. Let's face it: Love Tess or hate her, she's very funny in this episode. She's got a good sense of humor like Maria does.
i don't think that Maria's sense of humor can be compared with one, two scenes where Tess showed it. All the characters showed it for the matter. It's nothing extraordinary.
The writers created Maria like that and did build up her personality on it so she always was like that. Those examples with Tess are no different than the times where Liz or Isabel showed some sense of humor too. Even Max showed some sense of humor sometimes this doesn't mean that he's like Kyle for example.
i don't know about the girly girly... Tess was someone who didn't want to be human and it didn't seem to me that she cared so much about being girly girly.They're both kind of girly girls, they both know how to bicker with guys (Kyle and Michael). I just think it could have worked and it actually would have created a nice non-sci-fy conflict between Liz and Maria.
Maria on the other hand is more like a normal teenager
also look at her friendship with Liz or Alex. They aren't totally like her yet they're perfect together and it didn't seem to me that Maria or Liz were searching for another best friend.
With all the girls in roswell Maria was best friends with Liz (and viceversa). why? because a friendship isn't based only on girly girly things (btw i think that she and Liz shared interests in common too). Otherwise you have a "friendship" like the one Isabel had with her "friends" in the first season.
Your best friend is someone who can understand you like no one and is there for you when you need him/her. Someone who can give you advices and help you if you have a problem. And sometimes your best friend is someone who can complement you.
Maybe Maria didn't trust Tess, but I still think her loyalty to Liz would always have been the primary thing standing in the way of them ever becoming friends.
again, Maria always hated Tess even more than Liz herself. I doubt that her hate toward Tess can be blamed on her friendship with Liz because that would mean that Maria is immature and shallow and i don't think that she was.
She had her own reasons for not liking Tess (maybe because she thought that she played with Michael's mind too?). She simply didn't like her and never tried to hide it. She incited the hate in Liz too.
I think that she sensed that something was wrong about her and didn't trust her. And she was right.
Tess on the other hand didn't "help" either because she ignored the humans. I think that she hardly acknowledged that Maria existed in the first place. She had more chances to be friends with Isabel than Maria.
(at the same time i think that Maria had more chances to be friends with Isabel than with Tess)
It seems to me that people always blame the group for making Tess an outsider but any friendship should be based on both sides and Tess never tried to be friends with them. And we know why. Also it seems that for some people the characters (Kyle included) had the purpose to make Tess a better person and change her. I find this logic very flawed. They couldn't be her psychiatrists.

also there's a huge difference between "friends" and "best friends".
i think that this is the reason and you're not the only one.Or it could just be because Tess is my second-favorite female character on the show. I don't know.
It's like Liz's fans that hate Maria and want another option for the main friendship
Honestly i think that the friendship between Liz and Maria (and Alex) was one of the most important and well developed things in the show. It's something real. If i love Liz i have to respect the fact that she cared about Maria and not Tess. If i make her friends with someone that she hated in the series (Tess) i'm kinda making her OOC. I'm denying a part of her character, an important part. I feel the same toward UC couples.
Just wondering, does anyone ever question Michael and Kyle being written as best friends in fics? Because I don't, but since I'm writing them that way right now and plan on writing them that way again in my next fic, I'm curious.
Michael and Kyle had some scenes in the show (like in the third season)... with them (or Max-Kyle, or Kyle-Alex) a friendship can make more sense (although nothing in the show suggests that Kyle could be his *best* friend. When Michael had a problem he usually talked with Max. However you still have something to start with).
With Tess and Maria it doesn't because canon Maria despised her and wanted her to die while Tess totally ignored her for the most part. This is the difference.
In the show there isn't a single scene where Maria and Tess talked friendly, shared an interest, interacted in some ways. Something, anything, that could suggest that a friendship was possible between them. A friendship. It figures a "best friend" kind of friendship.
The only things between them is Maria's hate toward her and her mean comments everytime she got the occasion and this is not up to interpretation.
So a friendship between them is totally AU and fandom created because nothing in the show supports this idea. This doesn't mean that people can't write a even believable friendship between them! It's not the point. The mistake, i think, is when people want to justify fanon things using canon especially when canon strongly contradicts them.