He treats me like a little sister. Is this a sign of interest?

My coworker crush and I get along quite well. He's generally a really nice guy, but when it comes to me, he does things for me or lets me get away with things like as if I was his favorite little sister. He's only 2 years older than me. Is this a way of showing interest?
Yes
No
Select gender and age to cast your vote:
He treats me like a little sister. Is this a sign of interest?
Post Opinion