Feeling abused - some blind hands

[Roy6]

These are heads up pot at 5/10 6 max (folded to Button/CO)

I have very few hands (<15) on these opponents (they aren't the same).

1. Button raises, I 3-bet with K /images/graemlins/club.gifQ /images/graemlins/heart.gif from the BB
3 /images/graemlins/heart.gif4 /images/graemlins/heart.gifJ /images/graemlins/diamond.gif
I bet, he calls
Turn: 8 /images/graemlins/diamond.gif
I bet, he raises, I fold

2. Button raises, I 3-bet with A /images/graemlins/spade.gif9 /images/graemlins/spade.gif in the SB
4 /images/graemlins/club.gif4 /images/graemlins/diamond.gifT /images/graemlins/club.gif
I bet, he raises, I call (?)
6 /images/graemlins/heart.gif
I check, he bets, I fold

3. CO raises, I 3-bet with 66 in the SB
A /images/graemlins/club.gif5 /images/graemlins/club.gifT /images/graemlins/diamond.gif
I bet, he calls
2 /images/graemlins/spade.gif
I bet, he raises, I fold...

4. Button raises, I call in the SB with 44 (mistake? 5/10 blind structure)
Flop: A /images/graemlins/club.gifA /images/graemlins/heart.gif7 /images/graemlins/club.gif
I check, he bets, I fold...

[Roy6]

bump..

[pshabi]

lack of replies = standard

I don't like it either,but I think so. Don't know about #4.

[wrto4556]

I think I call down with the ace in hand 2. Also, hand 4 I think your small pair is good. Check/raise the flop, maybe.

The rest look good.