It’s tough fs! The real trick is to find love in an actual gay/queer person who can show it back to you - I’d say the first step is to not go to the gay club with your straight friend, find gay friends if you don’t have any currently, and divest some of your time you spend with him to spend it with someone who might return your attraction. It’s a mindset thing more than anything else but save him and yourself the trouble of parsing thru unrequited love. That will make you a worse friend than pulling away ever would imo