Tyler is very much the villain in this movie.. He leads holly on, gets back with his lying girlfriend (in turns lies) continues to lie to her, than "Holly gets pregnant." (Though she lies about it) he physicialy abuses her by pushing her on her stomach (not knowing if she is actually pregnant) potentially causing her to miscarriage. Yes Holly has a mental problem, but he is a Narcissists. And that is worse than Holly could ever be!