It's so weird and idk if he is a creep cause they knew eachother in highschool and seemed to have a relationship but now he dosnt remember it... Loonarloon
If he doesn't remember, either tell him or just let it go , from the top's perspective, MC is just some weirdo who has a crush on him, it makes sense that he wants to distance himself.
He's clearly not interested,at this point MC is just being a creep