My mom is also doing the same thing and she knows I know what's she's doing and I told her to stop that its to hard for me to keep in and not tell anyone. She said OK ill stop talking to him. The next day she see's him and talks to him on the phone and then 2 weeks pass and I told her one more time I can't hold it in any more this is a big problem so the next day she changes her number and she said the she was not going to call him I was not going to believe her and I was right she was still calling him from the house phone she see's him and they talk on the phone and I listen to everything and he tell her that he wants sex and other things so I told her that I was listening to what they were saying and she says no he didn't say that so that night she I was taking a shower and when I got out she said she was going to take out the garbage I said OK then I see her putting on makeup and fixing her hair and I said why are you getting all dressed up just to take out the garbage she said I don't like to go out all bummy so she left and she came back an hour an a half and she calls me and says I'm with him ill be home in a few.and today I see her texting him and then she takes a shower and she gets dressed and she tell me that she going to take the garbage down I told her what your going to see him she said not then I said to her yeah right then she said yes I'm going to see him and what then she lives. WHAT SHOULD I DO HELP??

Where is your Dad during all of these times?

I'm so sorry hun! These things put you in the worst position, you shouldn't have to be in this position right now. You probably want to do the right thing and tell your dad, but then you want to obey and protect your mom. I don't know your relationships with either parent. I would tell if I were you.

Personally you stay out of it.