This hand has been annoying me, but can't see that I played it badly at all - just checking it's OK really as a few people have said I could have got away from it but I don't see how.
Live Cash Game at Aspers in Swansea
Blinds are £1/£1 with $150 max sit down
My stack = £197
Opponents stack = >£200
Table is playing 8 handed with me in the Cut Off and my opponent in the BB
Read on opponent - He is quite loose and will call pretty light. I have been there for three hours and he has been at the table for all of that time. I have twice seen him lose his stack by calling down big bets with just top pair. He then won a big pot doing the same thing when somebody tried to bluff him off. He seems to like to call but I have not seen him make a raise and he is in a lot of pots. He is friendly and talking to everybody at the table.
My image = Very tight, I won one decent pot with TPTK and two smaller ones without showing. I think I called a raise once and folded to a c-bet, apart from that I have been folding.
In the hand in question there are three limper's ahead of me so I raise the pot to £10 with QdQh. The player described above calls and one other player (who seems a fairly solid player fwiw) also calls.
Flop =

-6s-3s
I think this is an excellent flop but I have to protect my hand (checks to me) so I bet out £30 into a pot of about £35. The player described above instantly goes allin for the rest of my stack. The other caller folds. I take a couple of seconds before calling and the guy does look pretty relaxed and happy with the situation. The pot is now effectively around £205 and it's costing me about £150 to call.
Can anybody find a fold here. If he does have the flush I have outs and almost have the correct odds to call anyway, if he has the bare As (and people do sometimes play flush draws this way) then I am a pretty big favorite. Anything else I am pretty massive against.
This is a really easy call right? Can I ever fold and how deep do I have to be before I start thinking about folding?
EDIT - corrected amount to call, to around £150