Take it for what it is,you are young and so is he . It’s not like either of you were ready to settle down and make a life together, learn from this and move on . Sounds like your trying to please everyone and you can’t. No need to go chasing someone and open old wounds he has moved on let him be . He is healing himself from this experience you should do the same. Rather than focus on love at your young age focus on your future. Where you can support your self and live independently , focus on a life you want to live