Should I leave my husband ? I need advice

I’ve been crying for hours now I’m feeling so depressed and insecure I’m 6 months pregnant and my husband doesn’t want to have sex cuz I’m pregnant he said and he thinks that’s nasty so he’s been horny lately and talking to so much females on social media now and just acting disgusting I’ve never seen him do this before I was so shocked and lost 😞 so today we went to Walmart He saw a girl with a really big Ass and he looked and said something out loud but that’s not all he did he started following her in ever isle she went to I couldn’t even believe what was happening any isle she walked to he desperately followed her and I wasn’t done shopping but that girl was so he came and said we have to leave now I was like why I’m not done ? He said she’s leaving let’s go he wanted to leave out so fast because he saw that she was leaving !!! He kept getting mad because I had to grab more stuff he said if you don’t hurry tf up ima go get her number so when we were in self check out he started rushing scanning our stuff so fast and that’s when I saw her walking to her car and he was like damn I missed it ... I just can’t believe how desperate and sick he is and then there were a couple of other girls that passed by while we were in self check out and he started damn look at all that ass and any other girl who walked by he would say something