Yes, you can use a spell.
My personal belief is not to use love spells. I'd rather a person love me on their own, not because of magik.
Let me give you a non magikal tip : If he loves you as much as you think he does, he'll come back. If not, well....that's just part of life. Having a broken heart is just part of life. Magik and spells are not the answer to all of lifes problems.
Just my two cents.