I worked with this guy in the summer, and he just messaged me to say hi.  I don't know what to say to him because earlier this month he got engaged to this girl who he's been with forever (I worked with her too).  The other day, they broke up.

How do you go from being engaged to being broken up!?  They already lived together, so it definately isn't that... it blows my mind.

My first thought was that we could sleep together and be dual rebounds.  His ex would definately be very jealous.  That might be fun... but I would never do that!