Because we're both pretty quiet around people we don't know very well, and then we're fun, open, and outgoing with our close friends (like with Mercedes and Artie).

I was going to say the same thing. I'm normally pretty quiet unless I'm around people I feel comfortable with.
And I would definitely go for Artie too, so we've got that in common as well. :P

uptight and need to be in control, yea that's me...

I'm a TA and I really care about my students and since I'm not an actual teacher yet, I tend to get very more involved in their lives as far as giving them advice and being a good listener when they need it. I'm also always always always putting others before myself and sometimes I really shouldn't.

Just like Cat said ;)

^ Cat said it all.

It is very hard, because I'm as shy as Tina when I'm arround people and I'm fun when I'm with my friends. But me and my best friends are popular and she is dating a boy, who isn't popular at all and I felt for her, so I'm a little like Santana as well (in season two), I'm kinda bitch too sometimes.

The biggest difference is that I have never told my best friend I like her.

Just like Tina I feel stepped on all the time.