I won't get into the details, but I'm on Effexor and Welbutrin, and I have sexual side-effects that can only be described as positive. Effexor also helped me lose weight. Perhaps mentioning this will calm his fears and perhaps motivate him to try something new? It's all about finding the right med and/or combination for you. If he's got unbearable side-effects, nothing is stopping him from switching to something else (with doctor's assistance).
I've tried a million different combos in the past 2 years, still working out some kinks. But if you want you can have your hubby come talk to me on chat or msg me, I'd be glad to talk.
Be careful about forcing the issue. You need to support and not nag I've had relationships go down the tube because the person was overwhelmed by my condition and they simply didnt know how to handle it. Not that I blame them, it must be hell for them, but understanding it a bit better I can tell my significant other "please dont do ____ and ____, it doesn't help". For instance what sets me off is when people say "you should try excersize, maybe talk walks, etc etc".. I've been this way all my life, don't you think I've spent countless hours thinking about what might help, trying different things? People give suggestioins meaning well, but it's just frustrating to hear the same things over and over. I have dysthemia, and no amount of walks or sitting in the sun will help, it is a chronic condition. Medication and lots of support from loved-ones, and prayer.
Good luck!