[Zagga]

The pot is like $5 on the flop and you check-call a $1 bet? then you bet only $3 in a $6 pot when a card came that gives people straigthdraws?

If you intend to check the flop then raise it up after his weakish bet of only $1. make it pot sized right there.

Then on the turn at the very least bet $5.

IMO you slowplayed yourself to death. and imo you should only slowplay if you flop quads or a powerfull boat.

EDIT: Also always buy in for the maximum before EACH hand. How on earth can he put you all in for 7,5 if you only invested like $6 so far?