Poker Stars $0.10/$0.25 No Limit Hold'em - 6 players - View hand 42370
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MP: $23.05
CO: $28.50
Hero (BTN): $25.00
SB: $31.35
BB: $18.90
UTG: $11.80

Pre Flop: ($0.35) Hero is BTN with A Q
3 folds, Hero raises to $0.75, 1 fold, BB calls $0.50

Flop: ($1.60) 5 A 4 (2 players)
BB bets $1, Hero calls $1

Turn: ($3.60) K (2 players)
BB bets $2.25, Hero???

I dont understand his donk, there is no FE since I hold an ace many times, is this a VB more than anything?
turn:I have no Idea where I am, he could have flushes, straights, draws or already made hands, A5, A4,AK, is all in his range. I know his bet is weak, but what do we beat here? AT and AJ and some drawing hands is all I see.

Is this a call and C/F C/C river depending on betsize or fold turn?

our enemy is 45/5/0.6 on just a hundred hands.

I hate everything
but I think

call > fold > raise

IMHO

I'd call. Folding if too weak with position and drawing to the nuts for an OK price, raising won't be called by worse.

If the river is a Q or a spade : shove. If it's a blank and he throws a big bet (~1/2 pot and more I'd say) : fold.

Stacks aren't quite right for a river shove unless Villain bets at least 1/2 pot into us. In addition, I think shoving over a river bet if the river is a Q is spew -- he pretty much never pays off with worse, and AK is a big part of his river value-betting range.

That said, I would call turn and call up to about 1/2 pot unimproved on the river. I'd flat call almost any bet on a river Q and (obv) value bet/raise any spade.

I think your first mistake is just calling on the flop. I think that you should have re raised him on the flop because:

1) You have top pair 2nd best kicker, so you have to think you are ahead because he would have most likely re raised pf with A K.
2) By raising on the flop you can see where you are at as well, if he re raises you then we may have to re think where we are at in his hand.

Therefore, I really think you cant flat on the flop, it leaves you out of control of the hand and you were the pre flop raiser so you should show aggression.

On the turn, after just calling the flop, you could also re raise here because you have the nut flush draw.

I just think you should have played it stronger on the flop

Nut flush draw, top pair, top kicker(king makes 2 pairs.). What more do you need?

His flop donk definitely feels like more of a v-bet and much less of a draw, but still I think AQ is marginally ahead of his v-betting range. When you include the possibility that he is doing it with a draw, your hand is a big enough favourite to warrant a raise. This, particularly against the loose-passive types, will still get you called by all worse aces and draws, while allowing you to fold if he comes over the top again without any risk of folding the best hand. Raising also gives you back the initiative, taking you away from the situation where you're in call down mode against some passive who's never bluffing.

As played though, I call turn and fold all non-spade/queen rivers (raising would be pretty bad imo). He's pretty much never betting the river with worse.

I agree with this. And on the flop you should have raised imo.