Dear Dr. Love:I have been dating a girl for about a year and a half. I love her with all my heart. I am in my first year of College and she is a senior in high school. She is a very flirtatious person, and I was getting jealous of nothing, to the point we couldn’t carry on real conversations because we were both constantly wondering what was going on behind each others back.A few weeks ago, we decided the best thing would be for us to see other people on the side, without changing anything between the two of us. She still claims to love me as much as she always has, but it doesn’t seem like that could be possible, seeing as she is with two guys other than me. Granted they aren’t as serious as she and I, but still.I ‘m not seeing anyone, but I did cheat on her before we set up this deal and never told her. I want to save what we have, because I think it’s really worth it.I have a couple of questions. One, is seeing other people more destructive than helpful. Two, is it possible she does love me as much as she says? And finally, how can I keep us together?Signed: Jealous Pair.