Online impersonation with the intent of engaging in a relationship is becoming more common. Similar to identity theft, catfishing is when someone "assumes" a real person's identity and/or creates a new online persona to engage in an online relationship.
It doesn't surprise me that singles looking for love online on MTV's Catfish have their hopes at an all-time high, but I wonder, why wait so long to meet in real life if you think you've found your soul mate?
If you see someone is falling in love with you and you do not feel the same way, be honest and firm. Tell them exactly how you feel. Never play with anyone's feelings and never pretend to like someone. Remember those avatars represent real human beings who can get hurt.