Screw the little dumb-ass. Find someone with a spine & a fuckin' brain. She dumped you over a fuckin' dream or some dumb shit like that? Trust me. I'm 32 years old & had this same numb-nuts kind of thing done to me in 1995.
The same little welfare-case will be pregnant with some carnival ride operator's kid inside of a year. These little shits go through phases. Guys with leather jackets, criminal records, aspiring musicians, drug dealers, etc.
They never see the "best-of-all-possible-worlds" scenario for them such as going back to school (college, university, etc.) right in front of them until reality sets in.
Reality for the kind of twit that dumped you doesn't set-in until after everyone else has moved on, nailed down a 9-to-5 job, married, shacked-up common-law, had kids, etc.
Usually meaning that your friends will no longer have room for your ex & her idiot boyfriend (& likely a kid or two,) on their couches after the twits have been evicted from the guy's apartment or booted out of both their parents' basements for whatever reason.