[quote=@Ammokkx]
God I hate collabs

I try to actively avoid any kind of interior monologue and try to only ever use the surface-level actions of what my characters are doing, including facial expressions, because I [i]know[/i] the other person is going to toss in an "I thought" somewhere in there and being inside of the headspace of two people feels so wrong to read.
[/quote]

This is pretty much why I try to collab one-on-one as much as possible, because most roleplayers aren't aware of this.

Though you can still make neutral observations. As an example, you don't have to write "Bill thought Abigail looked good tonight," as that is clearly inside of Bill's head. As soon as Abigail's player inner monologs about how she doesn't understand why Bill is standing so close we'll have two perspectives. You could instead go for "Everyone knew Bill was into Abigail, except Abigail herself." That type of description doesn't come across as being inside of Bill's head. It's just an observation from the narrator that could be made by anyone, even Abigail.