Help! Uncertain straight girl?

Alot of girls that are just friends do "couple-ish" things. I would say you guys were just that if you didn't say the part about how your always in her head. I think you should go for it because you could end up missing out. If she is comfortable enough to say that and hold your hand and stuff, you guys seem close enough to be able to talk about where you stand in the relationship. You'll never know if you don't talk about it.