Cheating

I know my husband is seeing someone else. He lied before about her and is still lying. I told him to stay away from the woman and he said he cut all contact and showed me he cut contact by taking her off social media and deleting her number after letting her know he can't see her anymore. But she's right back in the picture and on his social media. He said technology doesn't mean anything but she has a picture of them two posted up saying "The best to ever do it". I know they have something going on. She calls all the time. He tried to change her name to a guy friend's name in his phone, so I answered to say he was in the bathroom but it was her instead. She asked who I was. I told her his wife and she said well tell him to call me when you get the chance and hung up. I told him and asked what it was about and he said it was probably work related. He then bought a privacy screen protector for his phone and changes his password all the time. I'm doing laundry last week and see make up on his undershirt. He said a girl at work gave him a hug. The girl works with him and it was on his undershirt. How would someone get make up on his undershirt. I told him to get transferred because I don't feel comfortable and he says he's not leaving his job because I have insecurity issues to work out. I said I'm leaving and he said well if I don't make you happy, do what you have to do to be happy. That was last night after he came in late and today he's barely talking to me. Saying he doesn't have time for my shit. And left to go to a cookout at a friend's house. I don't want to lose my husband.