He is winning REG, but he was 4-betting good no. of times in same session but to different opponents, i was actually trying to take down the POT with 5-bet BLUFF as we were deep, LOL ended up screwing my winnings on that table. Also he was 3-betting me 2-3 times in same session, tried fighting back that's all. 
Hand converted with online PokerStrategy.com hand converter:
$0.1/$0.25 No-Limit Hold'em (6 handed)
Known players:
[tg]MP3$49.13:///////;CO$10.25:///////;BU$47.40:///////;SB (Hero)$44.99:///////;BB$30.11:///////;MP2$25.00:///////;[/tg]
Preflop: Hero is SB with J:d, A:d.
3 folds, BU raises to $0.65, Hero raises to $2.25, BB folds, BU raises to $5.70, Hero raises to $11.60, BU calls $5.80.
Flop: ($23.25) K:c, 8:c, 6:d (2 players)
Hero checks, BU bets $7.80, Hero folds, BU gets uncalled bet back.
Final Pot: $23.25.