Check out the Station Wine Bar and The Linga bar for a replacement. If you are lucky you will find someone you like enough to give the presents too. However, i hope by now your boy has come back and everything is patched up, but if not, try the above alternative. Siem Reap is a wonderful city, you aren't really alone. If nothing else get up in the morning, and take a walk through market and the town. It is really is a delightful place.