BB is tight/passive reg. Rather straightforward, from what I've seen.

I like 2.5x open with tight players in the blinds.

BB donks big. I'm guessing he has top pair or overpair here most likely. Though he's very straightforward, I don't want to discount entirely his bluffs. The board is extremely dry but it hits the BB somewhat often. So I just call.

BB donks big again. At this point, I could just call and allow him to bet river again, or I can shove. I don't have a heart, but it's not too likely that he has a flush draw himself. So I'm not too concerned about protecting. So, with this hand in a vacuum, it's probably best to just call.

However, I would like to occasionally bluff here. In my pool, turn raises are very respected: people (especially regs) tend to fold a lot. I have some very strong hands here (overpairs and all the sets). I could shove some of my combo draws or something like FD with overcards which have a lot of equity no matter what.