I noticed DH was being quite cagey with his phone so when he went in the bath a few days ago, I read his messages. There was a message to a random number on there which was from him and it was just a line of kisses. I confronted him about it and he admitted it was to his ex. He had also deleted the message history between them so there was just that one message which immediately makes me suspicious. This isn't the first time he's done this. He swears nothing physical has gone on but that's by the by...the intent was there to do something, that's why he was keeping it secret from me. He offered to sleep on the sofa, I told him to do what he wanted. Today he's arranged for us to go to Relate, appointment is next week. (I told him to do this otherwise I would leave.) He thinks now because the appointment is arranged, everything is fine and was all annoyed when I didn't invite him back into the bedroom! AIBU???