She added more layers to show he isn't just heartless, that he still has his humanity locked deep inside like most other vampires.

Of course NO!

i hate her for this

yes, their relationship makes them both OOC.

^I agree.

No, his feelings for her made him more 3 dimensional, and showed us that there is more to Klaus then what meets the eye.

For me He was a bad guy with not capability of love
Not ruined, but I like him less

^^^But his intereaction with his dad showed that. They should of brought in a girl from his past. Maybe make sage his ex instead of Finn. Not make him fall in love and buy a girl a bracelet after one scene(Sarcasim intended about the love part) ecspecially with a girl he tried killing twice. Toooooooooo OOC.