Mistake calling 3bet with KQs NL25 6max

[Hellmouth]

Hand is against an unknown with a full stack. After the discussion about threebetting ranges at NL25 I am really wondering if I made a mistake here.

I am in MP and first in so I raise KQs to $1.
Button Reraises to $3, I call.

After then hand ends, the button berates me for calling the 3bet pf with KQ. I won the hand and had a little fun at his expense, but he continued to call me a donk.

From a previous thread I think that my call is likely to be with two live over cards to a lower PP. So I put his range as all PP's 77+ plus AKs,o AQs etc when calling.

When looking at my equity I realize that I am actually a 62/37 dog

After berating me I realized he might have been tighter than first expected. Maybe his 3 betting range is TT+ AKs? Then I am a 68/32 dog. Does it matter that I am now getting 2:1? I think that still keeps me at about break even on the call?

It looks to me like calling the 3bet is actually wrong? Is this true? Could be a big leak?

Greg