An empty offer - It combines "hollow" (empty, lacking substance) with a hint of "promise," suggesting an offer that sounds good but ultimately means nothing.
Hollowmise - when you offer to do something but know you don't actually want the person to say yes, e.g. "Do you want a cup of tea", knowing you don't want them to take you up on the offer
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.