To be candid, Elias is a definitively selfish creature. He does what he wants, when he wants to, and how he wants to. Rarely does he spare a thought for others. While he recognizes that empathy is a desirable trait, he sees a willingness to bend over backwards for others as a weakness. The only creature that he will put before his own needs is his sister, Thea. Everyone else can hack it on their own, so to speak.
Considering this, Elias is quite possessive of the few that he deigns to care about. The notion of them forming bonds with others fills him fear, loathing, and uncertainty. He masks this all with anger, but perhaps one day he will grow to be more secure in the attachments he forms. For now, he is impulsive at best, and when he acts out of kindness, it is often to prove a point or merely out of boredome or as an accident.