My GF and I haven't had sex for a number of reasons and I think I might be losing sexual attraction. Help!

My [25m] gf [24f] have dated for just over six months. Our relationship is otherwise pretty good and I enjoy her company, and we share similar values. But I've heard sex described as like the toilet in your house - not important when it works, a disaster if it's broken.

Since about month 1, our sex life has consisted of me doing pretty much anything other than penetrative sex for 20-25 min to make her finish. Most of the time I do not finish, or it is a struggle to finish because we are taking turns giving me a HJ. Sometimes I end up just declining the handjob, if she doesn't seem into it or I think I will end up basically masturbating for an audience. She says shes into it, but her emotions and body language just aren't there in the way I would hope or expect.

Earlier in our relationship, she would make statements like "I can't wait for us to fuck so hard [in the summer] or [when we get home from this night out] and then pull away afterwards." Or something like "when we get home, I want you to fuck the shit out of me." Then, at home, nothing. Summer is pretty much here, and intimacy is lower now than it was then.That was hard, and although she didn't see it as "making promises" and didn't intend to be leading, I asked her to stop the future sex talk altogether because it was very frustrating.

I'm not suggesting that she owes me anything at all. What bothered me was putting sex on the table - sometimes imminently - and then taking it off the table. The communication is just mixed and unclear and never lets me know where we actually stand.

In April, she began taking birth control to regulate her period and to ease her fear of pregnancy, as she doesn't like condoms. I've spent every weekend together with her since taking care of her physical symptoms, dialing back on activity to things she can enjoy, cooking her meals, and doing her laundry. I'm not trying to keep score - I only mention this to say that I have been there for her, including by strongly suggesting exploring other options with her doctor, because this isn't normal.

Since then, her period has not stopped, which has reduced affection in our relationship to pretty much only cutesy sort of stuff. Handholding and pecking. When the mood strikes her, I will get her off. The last one or two times, I struggled to get aroused by it, where I used to chomp at the bit with excitement to see where the next night together might go.

The topic of intimacy now just depresses me. She talks about wanting to feel me touch her or wanting to touch me, or sends me a photo showing cleavage and it just upsets me. I can't tell if I've lost sexual attraction, or if I'm just in a slump, or I've built up too much expectation in my head. I think knowing that the encounter can only end one way is just incredibly disappointing to me. I feel like (and it is true that) I was doing more as a teenage boy than I am now. It's done a lot to my self esteem. But I cannot voice these feelings because she and others have said that it is uncompassionate to her struggles.

What do you think?