It was nice to have someone who would try to understand him and want to know him better as a person. People were always interested in his plans just because they wanted to gain something from it; Strider was the only one who was curious about what he did, though the Man did not stand to directly benefit from it. Then of course, there was the fact that the Man thought he could become a decent warrior. Strider trusted him enough to even try his cooking, a warg no less!! With the Man as companion, the journey to Rivendell would certainly be so much more exciting.