Husband said sometimes he wishes we never had kids

My husband started therapy last week because he's been depressed and his anxiety has been up a lot lately. I'm a SAHM and my husband works as a security officer. We were having a fight last night because my husband got mad at our 5 year old because she was throwing a tantrum because she wanted to keep watching TV. She was screaming and my husband picked her up and put her in her room and told her she is in time out. I told him he didn't have to yell and he we started fighting. We went to the bedroom to have our argument in private and that's when he said sometimes he wishes we never had kids. I asked why he would say that and he says he goes to work, then comes home, takes care of kids, goes to bed and repeats and does everything all over again the next day. He said how he used to enjoy video games. He used to write fanfiction on Archive of our own(a fanfiction website) and people would like his writing and he used to play magic the gathering and that it may sound stupid to me but he used to have a personality and now he feels like he doesn't. He has no hobbies at all. He just works 10 hours and comes home. He also said he tried to write for the first time in a long time and he just stared at a blank screen for an hour. That's when he started crying saying he can't even write anymore. I guess I don't know how to feel. I've never once regretted our children and the fact that he does hurts me. I don't want our children to know their dad regrets them.