Most Helpful Guy
It says that you're human. Many people go through this. It is not easy to deal with. You have to take the time to ask yourself how you REALLY feel about your current relationship.
Why do you feel the way to do about this new person?
What do they make you feel that your SO does not?
Why is that?
Do you want your SO to be that way as well
Do you think they would do that for you
Does this new person simply fill a void that your relationship does not
Or do you simply not want to be with the current SO anymore
Then you can decide from there what to do. It all starts with talking to yourself, be completely honest and brutal and you will get to the bottom of your feelings.
Most Helpful Girl
If you are interested in someone else, it generally means you don't have strong feelings for your current partner. In my eyes, if you truly love someone, no one else matters