Hi.
If you feel okay with what you are doing with guys, then you should try to ignore the names you hear from other people about your behavior. Everyone has different feelings about these issues, but if you enjoy yourself and aren't getting hurt, it's okay for you. The idea is to be comfortable with your decisions every time you participate in sexual intimacy, whether you are deciding to make out, have boys feel your chest, and/or anything else. Each time is a new choice and your actions always deserve thought and attention.
Not everyone needs a long-term relationship; some people are happier being on their own or free to play the dating field without having one "significant other" to think about. Also, making out with different boys doesn't mean you shouldn't be able to have a long-term relationship if you want one.
However, long-term relationships tend to thrive when people have things in common. Maybe you can figure out what traits you value in a potential long-term partner and then try to get to know people with those traits who are also interested in getting involved in a long-term relationship.
You may find the DEAL WITH IT! sexual feelings and boys resources helpful.