Many of us get into a relationship, and either you or your significant other think that after you have entered into the relationship that the other person shouldn't be attracted to anyone else but them.
I don't think it's possible to stop yourself from being attracted to someone else. It could be someone famous, someone you work with, someone you notice while out in public. It is inside your DNA and makes up who you are that dictates who you are attracted to. It's the reason you enter into a relationship with someone else in the first place.
It is one of your base instincts to be attracted to someone else and trying to go against that instinct would be the same as trying to stop feeling pain.
For someone to tell you that you are not allowed to think anyone else is attractive is incredibly naive, and an impossible request.
What you have to understand is that even though they find other people attractive, it is you that they have chosen to be with, and it is a choice that they continue to follow. They will follow this choice until there are enough reasons for them to start looking for another person to be with, or decide to spend the rest of their life with you.
If you are a jealous, insecure person you will try to control who your mate finds attractive and control who they see and what they do. This will ultimately lead to a breakup and will be your fault because you will have pushed your significant other away with your overbearing nature and need for control.
You chose who you want to be with, they chose to be with you, now both of you have to trust each other.
Everyone will be attracted to someone else and that is totally fine and normal, it's who you chose to be with that matters.
Scott Goerz