Why would a man think threatening to break-up would make me want him more?

The first time a past ex boyfriend did that was the last time. My reply when he got upset and threatening to break-up if I don't do as he says:

''Well the door is open right now. If I'm that awful that you have to give ultimatums to keep me then just break up already.''

I don't like anyone (not even a family member) using the ''or else it's over'' line on me. For me it does the opposite of desiring you more. It makes me lose more respect for you. I don't do that to anyone so expect the same respect in return. Why would a man think that would make me want him more?

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If I wouldn't tolerate that from even my own family or my best friend from my childhood years, why would I accept that from a boyfriend?
Why would a man think threatening to break-up would make me want him more?
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