Please help me understand these feelings, have i done the right thing?

"After everything he has done", What has he done for you except cause a lot or stress? His son will always come first and his wants of a bike will always be before what you need. You are not exactly living together and not seeing him regularly so he sees you as something to use when he needs you, he doesn't care that you are exhausted because you have to work 2 jobs, he is ok so to hell with you is the way he sees it and you did tell him not to speak to you for a while so he sees it as you are not wanting to continue the relationship and meanwhile he is out enjoying himself. Honey you are not happy in this relationship so let him go and make a new life for yourself and you will meet someone who will care for you and from past experience don't get someone with young children as you will always be second best. Good Luck.