I only occasionally play on party, mostly play a 500nl live, with 5/10 blinds.
Is raising to only 35 standard online in a 5/10 structure. Seems to me the pf raise shb 50+.
Second, you only have to call 300 to win 785. I would go all in here and if he flopped a straigt you still have 10 outs twice to win and clearly have odds to go.
I would push after his raise. You can't give up so quick. What do you think he put you on??? And you said he doesn't get out of line, well who calls raises with QJ??? Not me.
So do you think he has a bigger set?? Just curious???