Katie,

First, it does suck when you get blindsided like that.

Second, I believe that relationships end for good reasons.  In this case, having a boyfriend to tell you such hurtful and mean things tells me that you are better off without him.

I find that whenever someone is as cruel and as mean as that, it is NEVER about you.  It is about THEM.

Everything is not ruined.  He did you a favor for he showed his true ugly colors.  HE is the one who is the ugly one.

Please find ways of taking care of yourself, nurture yourself.  Find and be with friends who love you.  Do things that make you smile.  Go watch comedies  https://www.ranker.com/list/movies-about-getting-dumped/anncasano or woman revenge ones http://time.com/78617/best-female-revenge-movies-the-other-woman/.

Get out your pain.. get into your anger for he is a real asshat.  Please know that you are not any of what he has told you.

Mark