Help me please as I feel I'm being paranoid. My boyfriend of nearly a year is causing me some concerns. He is separated from his wife now for 5 years but yet to get divorced. He still meets up with her for a drink. He goes to her home and just let's himself in. He spends every Christmas day with her and there 21 year old son. He cooks there dinner and then they sit with there son whilst he opens presents .he still provides money every week to. He also has a lady friend at the pub he drinks in daily. They have exchanged phone numbers. He gives her lifts home and they message and chat regularly. He flirts with her as does she with him. And he smacks her bum. But when I confront him he says they are both just his friends. His son and wife have both verbally attacked me and my boyfriend says he will always stand by them. Am I being paranoid or do I have a cause for concern. Please help.