Hi there all, this is my first post so i hope i do it all correct.
I wanted to discuss this hand with you all. I play heads up (live course) with my best friend every now and then, the setup is the following:
Starting stack is 100.000
Blinds are: 10/20, 30/60, 50/100, 200/400 and 400/800 playing 10 minutes a round. BREAK. 1k/2k 100 ante, 2k/4k 200 ante, 4k/8k 400 ante and 5k/10k 500 ante for 15 minutes each round.

We are in the 1k/2k round and i'm leading in chips with only a mere couple of thousand (after almost 2 houres). I'm the big blind.

My friend complete and trhows 7.000 on top of that.
Look at my cards: Q6s, a horrible hand but i think i got a read on my friend and think he has Alk. I decide to call ( i know with that hand questionable, but i think i can compensate with my read)

Flop: 4 5 7 rainbow
Pot Size: 18.000

My word then. I think he didn't even hit his kicker. Still think he has Alk but not to sure. So still to life cards and a open ended straight. I decide to check my status and see if my read is good.
Bet 12.000

My friend doesn't think to long and re-raises me with another 12.000.
At this point i'm convinced that my read is good. Still he's stronger, but the fact that we only very rarely saw a turn and a river (most was preflop or post flop moves) makes me wanna see (questionable again prob).
So i call.

Flop: 4 5 7 rainbow Turn: 8
Pot Size 66.000

Wiehooee a straight. I know that the fact that is just called twice makes him nervous. He doesn't have a pin on me and i want to keep him off balance (trying to trhow in some fake tells at that moment, and not quitte without result i think). So i check.

He bets ( i beleive something like) 45.000

I push All-in

He calls

Flop: 4 5 6 Turn: 8 River: J