The bitterness you see in a guy when this happens is such a reflection of their resentment for women who aren’t interested in them. Being an actual decent ‘nice’ guy/person means accepting that women will want people that aren’t you, and that its a valid option undeserving of negative judgement or bitterness.
i eat so much junk food and immediately regret it after i finish it
- person: wow you drink so much water, you're so healthy!!
- me: i cry so much i gotta stay hydrated