Don't even know how to explain this - apparently on a group night with work friends out my partner (we don't live together) walked home with a female colleague who fancies him, he let her in - they were very drunk, she came in with him, he thought she would sleep on sofa but she got into bed with him.
He was apparently too tired to argue so let her sleep in the bed. Nothing happened, or so he says. He didn't tell me this for six months.
Would you believe nothing happened? Could you continue the relationship? I just don't know what to do.