Boy Problems PLEASE HELP!?

Okay so i have a boyfriend of 1 month. He is my best friend but i don't really like him that way. But then i don't want to break up with him cause he is sweet. I found this guy I have a small crush on. His name is Brendan and I bowl on a bowling league and he stares at me a lot and i think hes cute. PROBLEM! I've never talked to him before or know what he like. I found him on facebook and stuff. Im just so confused. Should i stay with my boyfriend,talk to brendan and see what hes like and just stay friends if i end up not liking him. IDK what to do ),: its stressing me out. By the way im 15 years old so yeah. Please help it would me so much to me. Thanks