One of the things my coach stressed out is that we need to behave in ways so that our spouses feel good about themselves when they are around us. I have a feeling your H feels inadequate, and his belief is reinforced every time you say something non-specific about your frustrations. Next time you bring this up, focus on what he can do to meet your needs better, but you must phrase it in a positive way.
Maybe he will change, but he needs to love himself first, and I don't think that's happening right now. Help him love himself, and the rest should follow. If it doesn't follow and you realize you're just not happy with him, you can make a decision...but that moment is not here now, so don't think much about it.
