It's obvious that Garam has trauma loving a straight guy, so he's afraid that he'll be in the same situation again. Besides, Jaekyung doesn't even consider himself gay or anything and he easily calls Garam a "fuc**** ho**" whenever he gets mad. If I'd be in that situation, I'd be like Garam.
Afterall, what's so bad about guarding yourself from pain?
Afterall, what's so bad about guarding yourself from pain?