How to break up with a nice guy

Me and my boyfriend has been to be together for about three years and I want out I am just not happy there is no attraction anymore it seems he is nice and respectful,at same sence can be a sarcastic ass. There has not been any physical contact in over a year now any other time I would not have a problem kicking a man to the curb but this one I am, I am the primary bread winner he is a classic mommas boy. He dose odd and end jobs but not a real Job witch in today economy makes it that much harder. I feel bad ask myself where he going to go. Dose anyone got his back ?? But the more I stay in this house feeling unwanted and unloved is the more I get sad stressed and deppressed. Even though I am 33 and he is 40 I need help not to care and just say goodbye someone please help

I'm in a similar situation in that if my partner leaves I worry where he will go and what will happen to him. I've been told that he is responsible for himself and that I should do what is right for me. You say you are not happy and there isn't any attraction. Is this likely to get better? Will you be wishing in 2, 3,4,5 years time that you had left earlier? You could always remain friends if he is willing. It's difficult I know. I am finding it so hard to tell my partner to go. Is he possible doing to you what mine is doing to me, that is - playing on my emotions, saying how much he needs me, saying he doesn't want to live alone, how happy he is with me etc. etc.