Baby carrots
If you spend enough time with someone then you’ll have particular places or songs that remind you of them. It might be somewhere you went on holiday together, or a TV program that you used to laugh at. If the relationship ended on a positive note then these recollections might make you smile.
If things didn’t end so well, then there might be a few negative associations, like this ex-couple. From the tone of the exchange, I’m seeing some bad feelings here. He is pleasantly recollecting eating pizza and trying to start up a friendly conversation. She sees his attempt at getting back together a mile off and makes a little dig at a part of his anatomy. Quite a shut down.