Sorry you are being treated like this. You have to be very specific with men about what you want, if you are looking for a long term commitment you have to let them know that. Sounds like he either just wanted a hook-up, or just decided he did not want to pursue the relationship. So keep looking, but if marriage and kids is your goal make sure they are on the same page as you before you invest your heart. You may have to kiss a few frogs before you find the prince.