User blog comment:EmpyreanSmoke/Supernatural Q&A/@comment-70.91.92.65-20150924170829/@comment-24834479-20150924235308

1. At the time they were more peaceful than his family, so he liked them.

2. I don't believe so, no.

3. He's seen the humans since they were created, and was willing to bow to them.

4. Lucifer taught him all the tricks he knew.