What's Wrong Having Friends With Benefits?

Both my ex boyfriend and parents have problems with my just having friends with benefits. All I am doing is having fun.

My ex who totally agreed to being in a open relationship got all upset when I said I was gonna see this guy. Meanwhile, I already said okay for him to fuck two other girls in the past and I didn't have a problem with it. All of a sudden it's a problem when I want to see a guy. We fought on it for almost a week when I just said screw you, I'm leaving goodbye. Nothing about the sex being better I just want to try different things. My ex wasn't bad or anything just wasn't open to the idea of me fucking other guys even though he agreed to it.

As for my parents, they complain that I am always out late. Bringing home different boys. My parents would say. "You should save yourself for someone you love." Like I'm 20 and I'm out here having fun. Once I feel like I want to start dating for real, I will. But until then I'm going to keep doing what I'm doing.