I apologize now if this post gets a little long, but I think there are a lot of different factors at play.

I (25) and my bf (31) have been dating for a little over a year and a half. I discovered RPW in the first couple of months into our relationship and at first the effects were staggering. However, for the past few months our sexual relationship has been on the decline. I've been the one to initiate sex at least 90% of the time, and normally he is more than happy to oblige. But for the last couple of weeks, its been particularly hard to get any sort of rise (pun totally intended) out of him. And when he does finally come around, it feels like duty-sex (which I appreciate I suppose, but it sort of defeats the purpose).

I'm truly happy in this relationship and I don't plan on bailing on bailing. So please don't just tell me to 'next'.

I am in the best shape of my life, even though I am more or less the same size that I've always been (a healthy shape by any measure), I work out now, I've quit smoking and drinking soda, I eat healthy, I've grown leaps and bounds with the way I dress and do my hair and make-up. and thanks to this sub I've decreased nagging and bitching, generally have a submissive attitude toward my bf and I'm much more pleasant to be around. I'm not trying to say I'm perfect, but just much, MUCH better than when we first started dating.

I've tried 'spicing' things up in the bedroom, but he likes things kind of vanilla, which is ok by me. But when ever I try to do something out of the ordinary (dressing up, leaving myself tied to the bed for when he comes home, watching erotica) he always seems disinterested and undoes that thing before we get to business.

He's also not fond of bjs, well not as the main course, he likes them just fine as an appetizer though. Anyway, this makes it hard to do sexual things with him that aren't directly sex.

I have also straight forward asked him if there was anything I could do to make myself more attractive to him. But he said there was nothing.

I'm worried this may be a T deficiency issue since he is a bit older and not in the best shape. If it is, I have no idea how to approach him about it without making him defensive or making him feel emasculated.

I do not believe he is cheating on me. He was burned by a cheater in the past and so he is very firmly in the non cheater camp. But I suppose there is also a (very) slim chance that he is one of those Madonna/Whore Complex guys, and he sees me as the Madonna (even though he knows about my sordid past).

It may also be that lately I have been feeling a bit on the depressed side. I don't remember what started it, but once I noticed our sex life on the decline I started to feel unattractive, which meant that my self-esteem and confidence to a hit, which meant I got more depressed and felt less attractive. I've been dong my best to keep a smile on my face, but it doesn't always work and I get emotional about it.

TL;DR - Sex is on the decline, but not from my end. I've tried a variety of solutions but its not working thus making me depressed.