Does she like/love me and is there other signs?

Well I was on facebook once then my friend told me ollloo which I don't know what it means. Anyways we had chatted for hours pretty much non stop. She would sometimes be very randomly cute. She says she laughs at much stuff I tell her. Once she asked me if I was going to church on a Sunday I said I couldn't make it she seemed sad. There other things that I experienced with her but I really don't know any other signs if she likes me. If you have any other signs that aren't in the description please tell me. Also are those a few signs that I put here?