Husband being an ass

This is my body 6 weeks after giving birth to our twins. Throughout my pregnancy he would "joke" and call me "fat" or "fatty" I could tell he wasn't attracted to me with how he acted. After giving birth I'm now met with comments such as- "your stomach is fucked" , "you still look pregnant" , "fatty" , "when are you gonna loose the weight?" "Your ass got flat" , "you have no ass" , "you might need that tummy tuck surgery to get rid of the extra skin". I ended up flipping tf out on him the last time he asked if I was gonna loose weight. He hasn't mentioned anything else since. The only compliment I've gotten from him was how nice my boobs are. He claimed he didn't want me feeling "insecure about my body".

Now with my first pregnancy he never made such comments. He always uplifted me. After I gave birth he would tell me how beautiful the few stretch marks I had were. He never acted like this towards me.

I'm not insecure with my body. I LOVE my stretch marks. I think they're beautiful. They are there because I created 3 amazing children. The best things that have happened to me. But I do want to start working out to help tone up my body. I would like to do arm, butt, and stomach workouts. Not for my husband. For me. I use to workout somewhat before getting pregnant but had to quit doing my pregnancy. If anyone has some workouts, apps they like to use, or advice for working out for at home I would love to hear it.

(No I'm not ditching the husband but he is on extremly thin ice. He is usually amazing towards me but has his times where he's a complete ass and needs to hear about it.)