I know i'm a complete stranger to you, but trust me when i say i know a few things about love spells and their cousin, break-up spells:
No practitioner, no matter how amazing their mojo (and for the record, Voodoo is a religion, not a form of magic - there is no such thing as a Voodoo spell, just as there is no such thing as a Jewish spell) no matter the spell, etc., *no practitioner* is going to be able to effect a break-up spell if the couple was rock solid to begin with. I'm sorry to break this to you. magic alone will not break a couple up.
Magic will not go against Nature; it will not accomplish the incredible. Magic works with naturally-occuring energies, so while you might have felt like the break-up came at you from no where, your partner might not have been on the same page. And while you might feel that your unwitting ex-lover is being controlled like a puppet, chances are that's not the case.
Magic will not force two lovers apart who are deeply in love and who are deeply committed. Magic will not make you blindly fall in love with a stranger, and stay with this person for years on end. At best, a break-up spell will work to create further distance utilizing the cracks that are already present in a relationship - it can hurry things along, create a big final blow-up fight, sour an already stale relationship, cause more bickering, etc., but it will not destroy an otherwise healthy and happy relationship.
I'm sorry to say this, but in all my experience i know these things to be true. I can say with certainly that there's no nefarious Voodoo going on. And i can say with near certainly that a break-up spell was not to blame for your lover leaving you.
I understand that the pain of his absence is hard to bear. Life can be hard to bear sometimes. If you are lucky to live a long life, you will have much better times and probably much worse times. I think lovers come and go in our life when lessons are needed, versus one soulmate/twin flame, etc., and when those lessons have run their course, then people leave to make room for the next lover/teacher. Bless him as your teacher and let him walk his path.