Realtionship with an older man!?

You are a legal adult you can do what you want. Of course his ex is not happy. She probably thinks of you as a child. As for the bf, just remember, he is a cop (they are not always faithful), you may not be the first girl he has hit on to date. He stops people all the time. And he most likely is not looking for wife #2 or even a long term thing. Just have fun and don't get hurt..he may not be falling in love material. The divorce rate among cops is very high as is the rate of picking up girls on a regular basis.