Considering what he DID put up with, I think he had a fairly HIGH tolerance for it. The average 30-yr-old guy, regardless of the religious side of their life, is going to be hard-pressed (so to speak) to turn down a veritable smorgasbord of sexual delights being not only freely, but BLATANTLY offered to him, even if he DOES think the woman is crazy. As long as she isn't constantly ranting and raving to invisible people on a regular basis, guys have a tendency to think along the lines that "crazy women are fantastic in the sack", and they'll put up with a LOT if there's some high-quality (or even LOW-quality) nookie involved.
I think JA was much more subtle in her "crazy", though. The stalking, temper tantrums, and threats of suicide were more overt, but she probably played mind games with him constantly, twisting him up every which way, but all the while pretending she had no idea what he was talking about whenever he confronted her about it, or insisting that he was blowing something minor WAAAAY out of proportion. She probably punished him even as she pampered him. Anyone who has NOT experienced that kind of constant, low-level manipulation cannot really understand what it is like. They'll push and push and push until you crack, and then try to turn it around and make it look as if YOU are the one with mental problems when they've done nothing whatsoever to warrant any kind of backlash. All the while, you can SEE that they are taking delight in twisting you up in knots. At least you THINK you see it. Is is your imagination? ARE you blowing it out of proportion? THAT is what they rely on -- making you doubt your own perceptions and intuition, thus making you doubt yourSELF at the core. Trying to explain it to other people is fruitless because what has been done to you cannot truly be conveyed in words because words only tell the story of what's visible on the surface, not what's going on underneath.