Strange Situation and have had a few beers, basically I was great pals with this lad for nearly 12 years.. we?

were really close. Then he started to want more - for nearly 7 years he would propose etc and at the time I just did not see him that way. Then I got pregnant by someone else and he just practically stopped speaking to me overnight, worse still 3 months later out of the blue he announced his engagement to his ex boss (someone who had pursued him for years, who he professed to everyone he did not find at all attractive etc), anyways, it has been nearly 4 years since I saw or spoke to him, I really really miss him, miss his wit, intellect and the opportunity to down copius wine and put the world to rights, should I contact him or letting sleeping dogs lie? **** isnt life complicated?????