You need to decide if divorcing him will make your life better. Is he also abusive when he is angry? If so, then divorce would be a better option.

But if he is just has a moody attitude then I wouldn’t recommend jumping to divorce. Firstly, he needs to go through PROPER therapy, (2 times is not enough), secondly there are specific programs for anger management that he can take part in, along with couples therapy. It does seem like he doesn’t really care and you might have to threaten him that you would leave if he doesn’t improve to get him to take you seriously. There is also the thought that are you wasting your time and energy waiting for him to change, and he is comfortable with the idea that you may have the I can fix him mentality. I would say since he did not go through therapy properly, give him a deadline to get his sht straight or you will leave. If he genuinely cares about your and/or this marriage he will put in the *effort to go to therapy regularly, rather than just behaving nicely for a week.

You also need to think through the consequences of divorce, it will be difficult to get remarried as a divorcee, you would have limited options and there is no guarantee the next guy would be better. Almost every human has their flaws, do you think you can settle with his flaws? Most people think abuse or cheating is crossing the line and is the point for divorce. But some people are able to accept them and forgive, it becomes painful to watch people live a miserable marriage. Therefore, it’s your decision to decide which action is best for you to pester him more to change or to leave.