You didn’t eff up. You did a kind thing reconnecting your boyfriend with an old army buddy after he lost other friends. You did nothing wrong. HE effed up. It may be that he’s never been attracted to men before and that’s why he’s handling it so poorly, but that’s a him problem. Just sit him down and tell him what you told us about the cat picture leading to text messages. Explain to him that you won’t allow yourself to be cheated on and either they split up so you can work on things (only if YOU want), or he can pack his things. But again I say, YOU DID NOT EFF UP!

Take as much time as you need to heal. I’m sure you had a whole future planned and you’re being ripped from it with no fault of your own. Snuggle the kitty while wrapped in all the blankets, but never, and I mean NEVER, blame yourself for this!