Why do I keep calling these? Because I should? Tell me, please

[K䲰䮥n]

BvB, stacks 100BBs. NL100.

4 fold
Hero raises to $4 with Q[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/spade.gif[/img]
BB calls

Flop 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/diamond.gif[/img]
Hero bets $4
BB calls (15/12/2.6)

Turn 7[img]/images/graemlins/spade.gif[/img]
Hero bets $12
Villain raises to $36
Hero calls hyachahyacha

River Q[img]/images/graemlins/club.gif[/img]
Villain bets $54
Hero calls