I completely feel in love with him and the he just left:(

Ok so about 10 months ago I met this amazing guy he became my best friend we would talk all the time and share every thing with each other. But about 5 months ago he ended up getting a girlfriend which up set me allot cause I love/loved him very much. He told me he loved me to (he said he was in love not just loved me as a friend)and then a month latter he tells me shes pregnant and that there getting married so that made me piss , sad , shocked ,and completely heart broken. Now I have had 3 big heart brakes with in the last 4 years the first one was the first boyfriend I ever had. He hurt me allot in allot of different ways but some how I am still friends with him. But any ways I took mine and his brake up pretty hard and acted out foolishly cause of it but I got over it after a few months. After him and after getting over him not completely but allot I started dating quite a few people till I met my ex Zach he was amazing in so many ways and I loved him to death. With him it was weird cause at first I just liked him as a person but there was absolutely no affection tords then I started liking him and then after that we took a brake got back together and then I was head over heals for him. But after a while he got bored or some thing then asked if we could take a brake ended up dating some girl and then left and never talked to me again It hurt allot worse then it did with my first boyfriend. But then theirs the one that I met 10 months ago him he hurt worse then all of them together especially now that he doesn’t talk to me and all and I just cant get over him or move on with my life and I really want to but it seem to me every time I wanna get close to some one I just pull my self back any advice ? P.S. sorry its so long and thanks to all who reply all so the reason I wrote about the ex’s is so that you can get a little more insight as to what I am going threw.