HU calling ranges

I've been playing a little HU lately, really trying to learn it and I thought this hand was interesting. I'm more curious about calling ranges on the river then what I really had, but if this is a dumb way to post the hand let me know and I'll post my hand.
Anyway, we had only been playing 60 hands or so, but he was pretty aggressive, so I was right back, trying to get into some big pots. His stats were 45/43/15% 3bet 6% aggf. Mine were around 38/32/15%3bet.
Is this type of board a good one to bluff or bad?

PokerStars No-Limit Hold'em, $0.50 BB (2 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($59.90)
Button ($60.15)

Preflop: Hero is BB with XX
Button raises to $1.5, Hero raises to $5, Button calls $3.50.

Flop: ($10) J, K, J (2 players)
Hero bets $5.5, Button calls $5.50.

Turn: ($21) T (2 players)
Hero checks, Button checks.

River: ($21) 8 (2 players)
Hero bets $17.5, Button raises to $49.65, Hero calls with what hand range?

You can only really beat a bluff here IMO, so if you put him on a bluff you can call with a much wider range. Checking the turn really allows him to bluff here otherwise you'd have to fill up. It is an interesting hand.