Should i break up with my boyfriend?

im in a sticky situation. Im20 yrs old &have been with my boyfriend for 3 & a half years. Hes a great guy, treats me well, i know he loves me, hes never lied or cheated on me & i really do love him with all my heart. However, things are just so predictable latley, literally i could say what our next conversation will say, it is that predictable. I have to beg him to go do things with me, cuz he is more of a 'stay at home relax' kinda guy... as opposed to me being very, lets get out, iam a spontaneous person. Its driving me nuts. Everything is just the same. i feel like its at a standstill. He is also a little too overprotective, i will admit ive talked to him about it and he has gotten better, so that isnt of my main concern. I know most people would tell me to just tak to him abou how i feel, but the tricky part is.. he is impossible to talk to... which i know isnt good in a relationship either. some part of me feels i just wanna be single too . but i do love him?... =(