I’m very jealous right now...

I’m 40 and my husband is 33. He always have been so handsome, I used to be very attractive myself, but after our 2 babies, I’m fat. I have been fighting with him so much. Yesterday he just texted me after work saying he was going to a bar with his co-workers for a friend get away. I was very upset. When came back at 9pm, I asked if he slept with someone, he told he may will if I keep fighting for nothing. I’m devastated. He complains I don’t trust him, and said he never did and never will cheat on me. Honestly, I’m afraid I’m making his life hell because I’m older. We have been together for 9 years, and married for 5.

What should I do?