Please Help, My Boyfriend Had Se_x With His Mom And She Is In Love With Him….

I am very devastated and hurt like hell when my boyfriend just told me all this mess. I will try to be clear and short


My mom’s bf is a sl*t ( sorry now I have to call her that), she was trying to s3duce my bf to have se_x with her when he was visiting her on vacation, but he said to me he was trying to reject her many times then one night he woke up to her being on his top :'(. I don’t want to go in details because this thing seems so disgusting and gross but I don’t know what to do either. Ditch him?