Woah there, don't assume that sex isn't an important part of a relationship, many couples fall apart because they desire different things in that area. I wouldn't place too much stock on previous feelings once you two start becoming more sexually active. Sex changes things, and the more you explore yourself and your partner's sexuality, the clearer you'll be about what you really want. Hopefully it is something she can provide you, but don't be too surprised if sexual incompatibilities cause strain later on in the relationship since you don't yet know what those are.