Strange betting pattern from villain ($6.50)

OK, this hand happened a couple of hands before the hand I would like comments on (although you can comment on this as well!)

Seems pretty standard to me, as the PF line means it's unlikely he has an A (he has been raising a fair % of hands pre-flop).

Hand 1

Blinds : 10/20
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2 players
[But]+[SB] pittbullbite (1590)
[BB] Hero (1410)

Hero T K Initial Pot: 30

pittbullbite calls 10
Hero raises to 80
pittbullbite calls 60
### FLOP ### 4 2 A Pot: 160
Hero bets 100
pittbullbite raises to 300
Hero is All in
pittbullbite folds
Hero hide cards
Hero wins 1790 from the main pot

Hand 2

Again it seems like an A in the villain's hand seems unlikely. The only hand that kinda made sense to me was a busted FD. I think the push over is bad though b/c FE is pretty small

Blinds : 15/30
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2 players
[But]+[SB] Hero (1715)
[BB] pittbullbite (1285)

Hero 5 3 Initial Pot: 45

Hero calls 15
pittbullbite checks
### FLOP ### 4 5 A Pot: 60
pittbullbite bets 60
Hero raises to 180
pittbullbite calls 120
### TURN ### T Pot: 420
pittbullbite checks
Hero bets 285
pittbullbite raises to 570
Hero is All in
pittbullbite is All in

hand 1 is super standard, if he's ever folding after raising the flop you should stick it in
why would you raise the flop in hand 2
you have a hand that can possibly go to showdown + weak draw
might as well call and make a decision on the turn
by raising you're making him throw away all the hands you CURRENTLY beat