Honestly, this may sound a bit rude but I really feel like Sam doesn't even know what love is tbh.
He always falls in 'love' with straight guys but he has never experienced real love with an actual gay guy, right?
You could hardly call that relationship that he had, a true/real relationship.
I feel like he probably thinks that person, that person, etc would look good with him in his mind and in his bed.
Which is typical for gay guys tbh. to have this vision of them being a perfect couple w/ guys who aren't even into them or gay at all.
I know many gay guys who have his problem where they think they love the guy (even if he's straight) but are just obsessed at the end of the day tbh.
That said, his manager is hot though but still.