PokerStars 50NL (8 handed)

UTG ($29.60)
UTG+1 ($27.50)
MP1 ($64.50)
MP2 ($48.75)
Ripptyde ($89)
Button ($54.25)
SB ($49.50)
Staresy ($78.20)

Preflop: Staresy is BB with T T
2 folds, MP1 raises to $2, 1 fold, Ripptyde calls $2, 2 folds, Staresy calls $1.50.

Flop: ($6.25) A 3 K
(3 players)
Staresy checks, MP1 checks, Ripptyde checks.

Turn: ($6.25) 7
(3 players)
Staresy checks, MP1 checks, Ripptyde bets $2.5, Staresy calls $2.50, MP1 folds.

River: ($11.25) K
(2 players)
Staresy checks, Ripptyde bets $15, Staresy asks FTR about .....

... his failure to re-raise pre-flop?
... his call on the turn?
... his decision on the river to this slight overbet?