yeah you're right, but I guess it hurt more when the bi/straight person starts building a family...+in this story he's been cheating on him since 2years and they were together for 5 so...
As a gay man myself, I am also super wary not only of other gay men but also straight/bi men because like in the manga, they tend to end up wanting a biological family. Normally relationships are a fifty fifty but falling with bi or straight man, it's more of a 75% mistake than the fifty fifty mistake. Yes we are to be wary of anyone despite their sexual orientation but it's just more of a risk falling for a straight or bisexual man if you are a gay man yourself. It is a bit hard to explain but also everyone is different.
I'm confused towards the people who says"i wouldn't be able to trust a bi/straight person ever again after that"... Like, i can understand the"i would not be able to believe in love in general for a while "or" I'd need more time before. Starting another Relationship "but not the bi/straight part. Gay people cheat too,he wouldn't be able to feel completely secure even with the" same kind"of people. That's just the thing about love, you can never be sure they'll stay with you forever or that you'll love them forever. Feelings can change for both