<human>: Give me the gist of the text in a nutshell

We've been married for three years, and aside from the lack of sex, we don't really have issues. We barely do it anymore. Maybe once a month, if I hassle him enough. He says he still wants me, but never shows it. The last time he initiated was three months ago; he was drunk. Every time I ask him or try to seduce him, he gives me a reason to not (too tired, hungry, busy) or tells me "later, I promise". The problem is, "later" never comes. I've even tried just leaving him be and waiting until he comes to me, but I ended up waiting three months before I couldn't take it anymore.

Before we lived together, things were great; he couldn't keep his hands off me. 

I feel like I'm not able to trust him anymore because all of his promises are BS and he never follows through. I've tried everything, and proposed couples' therapy but he refuses. If I try to physical initiate, he pushes me away (says he doesn't, but does). I know he's not cheating on me. Every time I try to have a serious conversation about this, he blocks me out and tells me he swears things will change, but they never do.

I don't want to leave him for this, as I love him and know he loves me, but I'm getting desperate here. Not to mention I have a friend who would be more than willing to "help me out" and each day that goes by, I'm getting closer to taking him up on his offer. 

Any advice?
<bot>: Apparently my husband doesn't physically want me anymore, won't talk about it, and I'm seriously considering finding someone else to fulfill my needs;