I think I'm a lesbian, but I don't want to be?

To be truthfully honest with you, I think you might be bi. Because although you say you imagine yourself being with a women, you still go out and sleep with guys, and I can tell you like it. Uou may not like sleeping with guys a lot, but you still do. It's either that....or your making an excuse to like guys because you don't want to admit to yourself that you are a lesbian. If you fancy only girls tuen yes you are a lesbian, but if you fancy both and don't mind having a physical relationship with them, then your bi.