Love life crisis

Okay so I've been in this relationship with an 18yr old guy and I had to give up my best guy friend to be with him this happened about 1 and a half years ago since then I've broken up with my boyfriend twice because he's hard to be with. At one point I wanted to have something with my guy friend but then got back with my boyfriend and we're still together but now I'm not sure I'm in love with him? Like I love him but not love love you know? My guy friend is everything id want in a bf but I don't want to hurt my boyfriend anymore. It's like a love triangle I guess can someone give me some advice???