I met this girl the other day, she's pretty cool. I found out she's friends with a few of my other friends and I told her you probably know my ex, and she asked me who it was so I told her, now keep in mind, I dated said ex THREE years ago. And now the girl thinks less of me because I dated someone she doesn't like long before we met. What should I do? I told her it shouldn't matter who I was with before, especially someone from THREE years ago, but she still won't listen. What should I say to her?