bitch may be becoz you stay with him for very long time already, so just dun wanna lose him. this is just like u own a toy, when it wore out, u still wanna keep it, rather than throw it away. but, but, if this toy become smelly and always attract many ants into your room and make u feel so lousy. then this is probably the time you should split it!
there are actually a lot of precious thing u can care for. do not let him bond u any more. i guess if one day he meet a girl he likes, he may break with you too.