Venting his anger on Megan is not that satisfying for him mostly because he still needs to pull back his punches. Megan is without a doubt strong, probably stronger than Jeff or Dinda but she won't be able to endure much of Pati.
Despite knowing that she's a masochist, there's a limit to how much she can handle.
Aside from that he also needs her for the future fight against the big Bird Zombie, having her accidentally die from him venting his anger would be a stupid way to lose her. Pati is very impulsive but not that impulsive.
Now that there's a group of survivors eyeing the Green Pershala Merchant, they are a perfect fit.
Pati doesn't go for the usual route, asking about their intention for coming here or giving them a warning to leave the place since they got here first. No, he doesn't do any of that. Instead, he went straight to asking them for a fight.
'Let's try out how effective my new longsword really is!'
