Brunchausen syndrome (factitious disorder imposed on others) is when someone tries to ensure attention and sympathy from loved ones by helping them gain weight, thinking their obese appearance will not draw affectionate attention from others. Inducing weight gain by constant feeding via buffet or brunch.
Suffering from Brunchausen Syndrome, she takes him to brunch daily, hoping the buffet will fatten him; he cannot possibly leave her in such a poor condition.
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.