Most Helpful Guy
We do remember our first girlfriends. In fact, most guys don't realize this, but their first girlfriend shapes the rest of their relationships. Same with females, their first boyfriend shapes the rest of their relationships.
But honestly, you are better off. Things like drinking and drug use, although they may seem inconsequential, are major things in a relationship. There are core differences in how you function when you choose to do certain things. So eventually, regardless of how much you two loved each other, smoking weed and drinking would have become issues in your relationship.
You're young...take your time and you'll find a great guy out there.