Help with my HeartAche?

I dated this girl for 2 years and last april she decided that she wanted to be free and did not want to get married ( i was to perpose to her that month we broke up ) Since we've grown up in the same town, around the same people and etc I have some what contact with her via friends and peoples conversations. I prepared a life for us, house, good job, family auto all the normal exes, now that were not together all of that has fallen on me and me alone. I see her now with all of our friends, going out every weekend, having fun and i am trapt under my bills which prevents me to afford "fun" activities, So i work 2 full time jobs to afford my home and etc and i get to hear from our friends her doing this with them and that. My problem is that my heart was given to her, i planned my whole life around her, getting ready to start our family and now i am stuck in that life for us but alone. Every day is a reminder and i am to a breaking point......Help?