Here, your weekly installment of Ask Lynn, BG’s alter ego’s column at MSN.com (powered by Match.com). Today, we meet “Curious George,” whose girlfriend apparently pals around a bit with one or two of her exes. Innocently, it seems, but still. “I’ve always believed that an ex is an ex no matter what,” he writes. “Are there any rules as to when it is OK to go out with exes by yourself?”

As a matter of fact, there are! Rule number one being, of course, that the whole point of “grabbing coffee” with an ex is to remind yourself how much happier you are now. Read the rest of the advice to George here — and then come back to comment!