You love him, but you are not responsible for his life.
You are very young, and you need to do what is best for your future, now that you have finished university.
I think you should take the option of moving back with your parents.
This is a major transition in your life, having finished university, and looking for your first job. You should not tie yourself down.
If you do, you are likely to find that you cannot leave, because your boyfriend will use the same kind of emotional blackmail that he is using now.
Stay free - see how things pan out with your boyfriend. You can still see each other. If you make yourself responsible for his life, you will stifle your own life.