Hi Daisybabe,
sorry to hear about how your relationship with this man has turned out. To be honest, (and speaking from a similar experience) I would advise you not to get intouch with him, riase above it and try to put it behind you. Just think - everything happens for a reason! The way he treated you was not what you would expect a real friend to do.
If you do see him when you return home, dont make a big issue about it - infact I'd try to catch eye contact and then just walk away - it'll leave him thinking what he's missed out on! Good luck xxx