i don't play a lot of cash games. to be honest, i didn't played once in last month. It is only because i made same mistakes like you, couldn't resist of calling with good hands, too much pressure on high stakes, and too many "idiots" playing on low stakes outdrawing me almost every good pot
you were heads-up, you floped monster 2 pairs there, knowing the opponent as loose and calling station. I don't know if you played it good or bad there, but against that kind of opponents i think you would be called with your all-in re-raise.
personally it's kind of opinion, you call when you want to trap somebody into pot letting him to lead the hand he can't win. when i'm playing against "idiots" i'm scared of everything.. (he could have 3J suited, 10J suited, KQ .. everything). i think i would move allin there, because i would like to take the pot there and every other card can scare me (J,10,K and any heart). But as i said i don't have too much experiences in cash games so maybe my answer here is not correct.
and, when you're playing against calling stations and loose players, there is no chance to avoid this kind of situation. When they see flush or str8 draw(gutshot or open-ended, doesn't matter), they think they have won pot there, and they would call any bets and re-raises. that's only my opinion.
welcome here, i wish you great time!