Just move on girl.Let him go.He dropped you even  without informing you.He is a coward,loser ,lier,opportunistic,idiot and you know what he lost- somebody who loves him so much.Infact he is real loser.What I see is u didn't lose anything.You found that he left you without even saying a word and married another person.That means he didn't love you. At this age and time,if one truely loves the other person,parents will give up if the kids are persistent and if kids don't agree to marry any other person besides the one he/she loves.Be happy that u got stuck with such pathetic person only for 2,3 years not lifelong.

Watch commedies,meet friends,if u r a student,pay attention to your studies.Do whatever you love to do before you met him.Life is fun,move on. Be optimistic.

You made a mistake of loving him.But it's not only u,everybody makes mistakes.Now what you need to do is learn from your mistake.Don't push yourself too hard.Do yoga.Meditation helps.Try to creat a new hobby.Indulge yourself in cooking or reading books or whatever makes you happy.It's not always bf or husband.You develop your own world too.Talk to your parents,siblings,chat with friends.But don't be pesimistic and keep listening tragic songs.

I'm sure,with this bad experience,you will turn out to be a better person and hope one day you'll meet a nice guy who really appreciates you and love you.

Take care.