Always steal in this situation?

[parttimepro]

So I've been bullying a lot with my big stack, and evidently stopped getting respect after a while. Is this an autosteal given the stack sizes? If you were villain and knew the big stack was stealing a lot, what hands do you call this with?

Seat 3 is the button
Total number of players : 3
Seat 2: Villain (1855)
Seat 3: Shortstack (1290)
Seat 8: Hero (6855)
Hero posts small blind (200)
Villain posts big blind (400)
** Dealing down cards **
Dealt to Hero [ 8d, 5c ]
ShortStack folds.
Hero raises (3800) to 4000
Villain calls (1455)