advice needed really, how did you know?
For a few months I've had a gut feeling he has been playing away. He's went out a lot, changed his phone password and keeps his laptop at work.
Today I got hold of his phone and read his facebook pm. There were messages to this girl we used to work with talking about how she fancies him (I already knew this) then messages from him saying she should stay away as he's 'bad news' but he did think she was 'gorgeous' and that she should come over. She said she wouldn't come over because she didnt want to wreck his family. Obviously I confronted him and he said he sent them drunk (he did, i remeber the night and it was at 3 in the morning) and he done it because he was angry at me and he was flattered that someone else liked him. Swore that nothing happened and he was sorry.
Now, I'm not an idiot, I know there is VERY strong chance he's been at it.