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?