Not joyful love

My brains are very chaotic now, I feel in one's heart thought that is very laborious ...Many people are called me to bids good-bye with my bf, but i cant do it! because i don't want injures him. He is a nice guy, he is good in him does not smoke, very little drinks, does not take drugs, will be very few and other feminine friend contacts also has him not to deceive me.He will not be good in him will scold me, not gentleman, some things little do not haggle over with me. He lets me feel that he not very loves me, does not care about me，cannot obtain the security sense on his...I think me very selfishly, if I bid good-bye with him, because I very much want the freedom now, the unmarried life, I can cross very much like this joyfully! But I do not want to more joyful injure him because of me.This question really lets me think bothersomely，i dont know what should i do now? it is i need give he my joyful? but if he don't change his bad behavior to me, then i can also the sad pain. Do not injure him. But has actually put itself, how should I manage?