Good idea or bad idea?

So I broke up with my ex a few days ago due to the fact that he says he feels lost about everything, he is tired of half assing a relationship because I deserve better and he just doesn’t know if he can work 2 jobs and be committed to a relationship all at the same time. He asked for a month long break and I knew i could not handle the pain of him not knowing if he wanted me anymore and then having to wait to see if he did or not. It would’ve been me torturing myself. So I broke it off even though I’m still madly in love with him. I felt this would be the best for him if he really felt lost. We both moved out of our apartment and we broke our lease we have to be out by the 31st. We’ve argued but talked it out and have been civil since. I still love him with all that I am and I want him back but him not knowing is what’s killing me, him NEVER helping me clean the apartment for 2 years is what’s killing me, him doing things that he knew would upset me behind my back and then using that as an excuse to cover a lie is what’s killing me. Even if he did figure this out I don’t know if I would want him back after all....anyway I’m off track my apologies I’m just wondering if writing him a letter about how I still feel would be a bad idea or a good one. I want to thank him in the letter for everything, let it be known that I do still love him and miss him, let him know that I hope he learns from this and remind him what love should be like. We were a unit and just because he was afraid of marriage didn’t mean he couldn’t do it we already lived together. I just feel like I should but I don’t know...