Background: I'm a bit of a nice guy. I have gotten friend-zoned sometimes after getting girl's numbers as well.

These days after initial approach and rapport building, I straight out ask: "Are you single" and straight up turn and walk out if girl is not single. Is this considered rude? A girl today was like "rude..." when I walked out on her (Earlier I used to be a beta and still indulge these girls for minute or more).

This is very helpful to me as it saves time and I can approach more girls. I'm wondering if this is bad?