Your betting issue started on the flop not the turn
Ok, so as I see this hand, I believe that you misplayed it from the very start. You are biggest stack at the table, so that should tell you immediately that Q10 suited is one of the safest plays you can make from largest stack, in fact it is easily in the top ten
hands you could have received. The reward is substantially higher than the risk when you have the understanding that you have countless boards which produce extremely favorable come from behind wins, as happened in your case, when high ace came with two more of your suits. Think about these points:
If one assumes your opponent bet in holding an ace, thus giving them top pair right off the bat from the flop, well then think about what they have to look at if you bet aggressively: well, it is immediately clear if you bet hard then you are representing you have either an ace too with strong kicker - or, you are representing you have flush draw - or, you don't have shit and are
bluffing - either way, the opposing player now has to fight your hand on multiple fronts because of what you represented.... Now, the player has a lot more thinking to do before they reach the river... Their stack was 6th at the table, smack dab in the middle, so they have some chips to give, but not so much they can keep betting and stay in the game... So, you know from this analysis so far, that you are not betting at the pot -
you are betting at his chip stack, let us examine what differently may have happened...
Remember, big stack is enriched only when there is an aggressive betting angle, and bled dry when smaller stacks are allowed to stay in long enough to make their hand...
This is the best way I see to play your hand...
When opening bet wasn't raised all the way over to me on the big blind, and I'm holding suited Q10, then I'm raising on my opening bet to 300 based off the stacks that could go in the pot with you.... I imagine that knocks small blind off immediately, good because you box out hands similar to yours from being played, while still inviting small pairs, most Ace combos, and medium range King combos... Now, you know your opponent...
To continue, I obviously believe your opponent calls 300 but is uneasy about it, because so many hands you hold can immediately beat him. Sp, the flop is flipped... Now, because the small blind probably folded already, the bet is first to you. Upon seeing strong flush draw with Ace of my suit showing, I bet 700, because that's about the max he can give away before becoming complete pot committed, as your opponent would still be ahead of 2 others at 2k and only a hundred from the next one up. Because your opponent makes a set, they probably call the 700.
Next up, the turn.... on hitting the flush, I bet 1200, because if he calls that bet and loses, then they are all but out of the game. So, let's say your opponent calls this bet, then you know they are representing something extremely strong, but not the strongest, so it is safe to assume at this point that your opponent has two pair or a set...
If they called on the turn, then the river.... I bet 300 (
remember, we are chip stack betting) then it is likely your opponent in all likelihood only makes the call as the entire time you represented something insanely strong so why not save a few chips just in case this idiot somehow did have something better kind of thought.
And, yes you still lose if they went through all the way like this, but keep in mind you still would have saved 500 chips, which would have put you in a much more secure position chip stack wise
Thats
IF they called on the turn, which I don't think they would have, I think 1200 would have been too much for them to risk sitting on a hand that was just beat.
Just my thoughts, fare thee well friend