<human>: We were both in the same friends group when we started dating, and we both mutually liked one another for a while before it started. Going for 3 months so far. We both like a lot of the same things. The only problem is that sometimes I feel like I like her more than she likes me. She never seems to want to meet up outside of the group, and she never really texts or messages me. 
She says that relationships make her kinda uncomfortable. One time when we were talking she said about how she doesn't feel like she cares enough about the relationship but implied that she wants to care more but it's "just her brain", and that sometimes she feels like she would prefer to be alone and sometimes not, but she just has ups and downs. 
She also doesn't seem to like being affectionate at all, which I dislike, but I'm wondering if if she worked everything out then she would feel more comfortable in relationships. 
Has anyone got any advice? I feel really depressed with the while situation but I don't want to lay these troubles on an already troubled mind. Is there anything I can do to make her feel more comfortable or to change my own mindset? Thanks

Condense the text into a few key points
<bot>: don't know if me feeling slightly depressed/clingy is causing my judgement to be distorted, or if my girlfriend has some personal issues to sort out which make her feel uncomfortable in relationships