How to know if cancer man in sincere after they cheated?

I posted a topic here before about Scorpio and cancer break up. Well, so many things happened after just a month. I found out that my cancer man seeing another woman right after we broke up. I become obsessively asking him about the new woman. he denies it all the time only his friends come to me and tell me what he's been doing. I don't know if it is real between them but the woman has a husband and kids and she's older 8 years than him. my ex was still texting me every time he's drunk for sex even he was with that woman. after a few weeks, I heard that they develop some issues as my ex is a very jealous man and he got into fights one time when his new girlfriend dance with another man. that's when his call and text to me become often. until one time he initiates talk about our relationship. He asked for another chance. I would like to take some time to think about it but he refused. since I love him so much I gave him a chance, but he still denies about that woman, he always says they were just drinking buddies. I can feel in my gut that there's still something going on. 2 weeks after we got back together I found out the message of the woman on his Facebook. She seems hurt that my boyfriend suddenly ghosted her and she doesn't know what she did wrong. She was asking for a talk but my bf refuse it according to the woman's message. and she was very sad that they broke up all of a sudden. I can't believe that my bf lied to me saying they didn't have a relationship. he looked at me in the eyes before and denies about her even his friends has been telling me everything. Now, He's begging me to trust him, he promising so many things. and said he realized I'm the right one for him. I'm the only one that can understand him and the only woman he can trust blindly. all his friends and family were sad when he left me. He said he will never do the same mistakes twice. I don't know how to believe in him especially he refuses to show me his phone conversation with that woman. And also, since I moved to another place, he never asks me to come back to our place when we get back together. I don't know if he still playing or just retreating in his shell. I noticed before when he got caught doing something bad, he usually runs away from the embarrassment rather than facing it. can someone say their opinion? I'm hoping that it's just his nature that he cannot take embarrassment that's why he chooses to lie or he cant show his conversation with that woman to me. I was his longest gf and when we were in a relationship he actually treated me well. should I give him some time to prove himself?

You honestly sound like you're losing yout mind. Please get a grip. He's not worth it.

99.9 percent of woman who take back a cheating man, REGRET IT. Don't ALLOW yourself to be a fool. A liar is a coward who chooses not to tell the truth. Can't you do better than that?

This isn't about the woman he was cheating on you with. I'm sure if she knew about you, you'd be the woman he cheated on her with.

Stop allowing his friends to put shit into your ear. Start fresh and stop trying to figure out his deceitful ways.

Move forward. Stop asking meaningless questions and start a new path.

If your broken up and he’s seeing someone else that isn’t cheating.