If a guy blows hot and cold, is it a tactic to keep you interested?

There’s a guy who keeps blowing hot and cold, one minute he’ll be really flirty and the next day he’ll ignore me. Then I’ll think he’s not interested and suddenly he’ll show me interest again. Why does he do this? Is it a tactic to keep me interested?

He knows I like him, but I end up feeling hurt by it, because he’s so up and down. What’s his problem?

If a guy blows hot and cold, is it a tactic to keep you interested?
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