For me, it always comes down to genuine self-esteem. Someone's fashion style, physic, or facial symmetry really doesn't matter if they have no confidence in themselves.
In other words, have something to offer that is worth more to others than it is to you,so people want to be around you but don't drag you down.
(This is looking-gglass similar but very diffrent from desperately simping, which costs you more than it benefits them).