I've been seeing this girl for about 4 years, its very serious (but no talks of marriage) and we love each other a lot, but the thing is we dont have sex often. Maybe twice a month, and its been like this for a long time. I know she isnt cheating on me, but shes a person who worries a lot and that keeps her from being in the mood. And usually im ready to go at the drop of a hat(because i only get it twice a mo.) but she doesnt like it because she says its too easy. I've tried almost everything (acting uninterested, lots of build up, ect.) it just seems like shes not interested. Im pretty sure its a psychological problem, but I dont want to be stuck in a barren relationship especially if i marry her (which i could see myself doing) i have no idea how to bring this issue up or how to go about it.