I think it would be cool to have an upgrade or something that allows us to see if a new girl we are talking to has the same personality as a previous girl we were with. So if we had a good relationship with a woman and we went out to meet another one, there would be a message upon seeing them that says something like
"The way this person talks reminds you of *insert name here*."
This way if someone wants to see another personality or wants to repeat the same one, they can quickly see if this person is someone they want to talk to.