What should i do?

I have a boyfriend and our relationship isn't what it used to be. we don't go on dates anymore we dont spend time togther and i don't like that i am 17 years old and i want to go out and have fun instead of sitting on the phone and at this point i font want to break up with him and regret it i need advice and i need it bad. because i have someone that want to make me there girlfriend but its the simple thing of staying faithful or breaking up with him and makeing it an end of an relationship and make it a friendship????????????????

If you have someone else you would consider having a relationship with and your current relationship is no longer doing it for you, sounds like in your head it is already over. Do what you feel is right for you.