Ok, I began dating my current girlfriend 18 months ago. Like the beginning of all relationships, the sex was great. We had sex everyday until the end of the school year, which was only 1 month later. Because our hometowns are 7 hours apart by car, we only visited each other for a week at a time on three or four occasions over the course of 4 months, but each time we saw each other our sex life was great.

Fast forward to the next school year. I noticed she began acting differently towards sex. It wasn't being initiated naturally, and I wasn't sure to make of it. It slowed down to about 3 times a week, and then decelerated to once a week not too long after that. By the time winter break hit, going two weeks without sex wasn't all that uncommon.

I was very upset by this. I know that she loves me, and we had talks and she assured me that she still is attracted to me, but she said she just didn't feel any desire often. (As a side note, she also made it a point that I shouldn't want it if she doesn't, which I mostly agree with, but she really holds true to this and it kills me. She REALLY won't do anything until she feels something.)

The next part to this story is this: she began taking prozac just before we started dating and we determined that might be the case. She changed her medication to effexor (which doesn't make sense to me because it has the same libido killing effects), and I hoped things would begin to change after our winter break. Nope, same thing. Sex remained at a rate of once every two weeks until the end of the school year. We had many more talks and nothing ever changed.

I went into summer very distressed. I was questioning our relationship... how much longer could I handle our sex life like this? I thought maybe we just needed a break from seeing each other everyday, and this summer break I was living at school, so I was able to see her once every two weeks. Well, this summer was the worst yet. I would come and visit her after not seeing her at all for two weeks, and each time she would shut me down until the night before or the actual day I was leaving. It made me feel very unwanted and that she was doing it just to make me happy enough to get by.

Conversation has gotten much more serious recently, and I have made it clear that I don't want to be in a relationship like this and things need to change. Since school has started this year, we have had sex once. We have not had sex in 5 or 6 weeks. I feel ready to break things off, and I think she finally is starting to realize it. It's extremely sad because we love each other very much. If the physical aspect of our relationship was good, things would be perfect. We have had discussions and cried together because I feel so sad because it feels like we're not even dating and, she feels so bad and insists it's not her fault and that it's the antidepressant... to which I don't deny. In the end, it doesn't matter if it's the antidepressants though, because if things don't change I can't be in a relationship like this.

Finally, she has done one thing that is keeping me hopeful. She is scheduling an appointment with her doctor to switch from effexor to wellbutrin over thanksgiving break.

More background info:

It's not just the sex. She just isn't affectionate. She never grabs my attention, kisses me, and makes me feel loved in that sort of way. She'll cuddle, but only sometimes, and she never wants me to even kiss her unless it's a good night peck as she's going to sleep.

I am not constantly putting pressure on her to have sex. I know that it turns her off if I were to do that, and I've been waiting for her to initiate instead. As I said, though, it's been 5 weeks going strong with no sex. It's so frustrating I just don't know what to do.

What do you guys think? Anyone been down this road or have any advice?