Kickboxing is awesome. I don't know what I would do without my TKD training - it helps so much with aggression. Even just putting my boxing gloves on makes me instantly feel 10 times tougher and more confident. Maybe I should just start wearing them around everywhere I go . . . .
I agree with the previous posters, that you need to put your boundaries with your H back in place. I am hoping that his recent behavior (really, starting with the night he called drunk wanting to come over) is a sign that he is still invested in you and the M, but it seems that if you allow him back in as your friend, he just starts to eat cake. I guess if I was you, I would just ignore the texts of a personal nature. And maybe let his calls go to VM. If it's something important about the kids he will leave a VM and you can address it later.
By the way, a few weeks ago I got a mistake text from H that said, "God, I wish." So you can imagine where my mind went with that one. Ugh.
me: 44 XH: 42 M 11 years D10 and S8 Bomb drop 9/27/13 D final 7/1/14