Why did this feeling change?

Everyday I've always loved my best friend (we're both girls) and sometimes I thought I became bisexual a tiny bit because I loved her hugs and I always thought about kissing her and protecting her forever and ever but anything more would disgust me. That was before she started sending me things about how much she cared about me and how nice I was and how much she appreciates my help since she's been so upset lately. Now that she sends me things like that i don't want her. It's like the more close and kindness she expresses to me the less I like her. I don't know why I feel like that. I want to want her again but I just don't all the sudden. This probably sounds so stupid haha