Oblivious

My sister was once married to a man I always considered to be, at the best nosy, and at the worst, completely without boundaries.

He helps people out, but only in ways that appeal to him and only if he feels adequately compensated with food and money.

He is quick to take advantage of other people everywhere he goes, both doing and saying inappropriate things and offending people who are just too polite to bluntly tell him what they think of him.

He forces himself on people, doing things like refusing to remove his truck from a garage that he neither owns, nor pays for, even when asked nicely by people who need the space. He does not even realize they could push that truck out to the curb and have it towed off by the city, but don't because they are better people than he is. He thinks he's one-up and safe because he took the battery out. 

He thinks because he has never faced discrimination he is better than people who have.

He always puts himself first and is the first to whine if people don't treat him the way he thinks they should.  He just doesn't understand how kind people are, because if they treated him the way he deserves, he would really be miserable.

He is completely oblivious.