<human>: Give me a shortened version of the text

I was in a relationship for almost three years, during those years I was also really busy with work and getting my bachelor's and master's.This put a lot of strain on me and the relationship, it resulted in short-term break-ups. A few months before graduating university we REALLY broke it off. 

He did say that if I ever had second thoughts, I should let him know. But I had no doubt in my mind, I wanted to focus on graduating, promotion at my job and myself. 

Now more than a year and a half later, things have calmed down. I have a great job and feel much more at ease. In the meantime I have been alone and enjoyed it and then started to date again, but I kept comparing them to HIM even though I tried not to. I realise I want him back…  

However, I know he has a girlfriend for 9 months now. Should I reach out to him, to see if there is any chance for us to get back together? When we were already broken up, when he started dating this woman, he let me know that I would always be the big love of his life.  

He looks truly happy on his pics on FB, should I invest in getting over him and just leave them alone and not stir things up? Or take a chance, make myself vulnerable and 'fight' for the love of my life?
<bot>: Ex told me to let him know if I ever wanted him back, I now want him back but he has a new gf, should I reach out to him?