This seems to be the shape move to help the left side. I'm too sad to do any deep reading right now. He still has to be a little careful, so I'm betting on something like 12-8 next.

In case I'm wrong I should be explicit about what I think is going on at this stage.
I think I've captured two stones in a snapback and connected through while black has a slightly ill looking group on the left that should be fine and a group on the right which has an eye and two halves.
My group doesn't actually have an eye from that capture but should have enough going for it to live without too much discomfort.
I realised since last move that black has that second half eye at 15-4 so is alive unless something funny happens.

I don't really understand why black's last move didn't ladder at 9-5.
Saving this stone feels like it banks a few more forcing moves by keeping this group unsettled?

If b7-5 then I play 12-8

If black got to link up over the top here and I had to play a low value move inside that would feel bad. This might make 11-2 my sente too

Only an emoji:

No idea why he would make that exchange of 8-5 for 7-5. I considered atari over top first, seems like bad timing. I really wish I could continue the attack. I also don't want to die or get surrounded with my wall by accident. Gonna chill, think about the shape, get my work done, probably reread the moves and play another move in a couple days.