well we dated before and the first time she loved our sex...now that we got back together we started doing it again and she said our sex sucks. so i did all different kinds of positions and that was failing. she just came out and said today that "maybe sex just isn't our thing" but the thing is she likes to have sex and yeah but she says she is in love with me, any way i can change the way i can give her the sex she wants so we can go back to not having problems....i asked her what she liked and she said talking during sex and i do that as well but it's not helping.