Is it possible to fall back into love with a spouse?

There is a reason for everything in life. He is quick to anger and yells a lot. Why? You may be certain that he does have a reason or reasons. What you have to do is to sit him down and in a non-confrontational way, ask him what he's feeling and thinking. Speak with kindness, and open yourself up to hearing what he has to say. Attentively listen to what he says, without disagreeing with him, and even repeat it back to him in your own words so you're sure you understand his point of view. After you've heard him out, really think about what he told you for awhile and try to come up with ways to address his issues. You two can make things better, but one of you is going to have to open that door to communication and understanding, and since you're here asking the question, you're the one who's going to have to do it.