Why having a crush on online characters might break your heart

My boyfriend's gaming friend (let's call him Andrew) had a convo about my boyfriend with their third party who's a complete stranger they're gaming with. The stranger asked Andrew if my boyfriend is a woman. (His gaming character is unisex looking robot and has silver purple skin) with matching weapon

And Andrew just thought it was too funny too reveal the truth. So he went with it and said yes. So the random dude still thinks my boyfriend is a hot woman he's gaming with. And he now has a crush on "her" my boyfriend.