Boyfriend of year and a half just broke if off with me.

I have never been so upset ever in my life. I feel completely broken him and I talked about getting married and having kids and he doesnt wanna work for us and our relationship I am just feeling so down and like I dont ever want to get into a relationship ever again. I am the type of person who has always kept everyone out. It hurts to finally let someone in and have them crush everything. Oh well I guess right? I just feel sad and feel like I have no one.