There’s really not all that much to this one. Obviously relationships are constant fodder for comedy, and we thought the idea of breaking up with someone you’re not even dating was pretty humorous. It had the added bonus of Rick’s insanely vague reasoning, which almost everyone has been presented with at one time or another as reasoning for a breakup.
Again, there’s not much here, but it is likely the first time the idea of a Rick and Megan relationship has been acknowledged. No, there isn’t one, but there is the idea of one.