For background, had a baby a year and a half ago. Sex life wasn't great before but came to a stand still and we've done it twice since baby was born (despite my best moves). Tonight OHs phone was going mad, message after message. I glanced over and asked who it was. He said David but angled the phone away from me. I asked what he wanted and OH got really defensive, what was I implying, what, do I think is going on ,etc. Just an ott reaction. I said ok, "show me then" and he said "look" and flashed the phone at me. But I could only see the name David and didn't have time to read what the message said. He then spent a few minutes typing really quickly with the phone angled away and it has been either in his pocket or face down since. I tried to bring it up again amd he went off, about how insulting it is that I would imply anything like that. Very odd. So... What do you think. Is he cheating?