Felix have 2 personalities, the first one is the cute, sweet and the kindhearted...The second is the rude, Heartless and cold....it all depends on his mood...You can tell if he is changing emotions is by seeing the change of his color scheme..

One day. As you were walking..Felix accidentally bumped into you..He turned dark in an instant but when he looked at you...He immediately turned light again

"O-Oh-...I-Im sorry for bumping into you-"

Felix said shyly with a blush on his face