She wants to act single, she can be single but this wouldn't be the act that caused it.
You clearly need to communicate boundaries so she understands what you feel is 'weird' as you put it. In doing so, be specific in stating crossing this line will lead to the point of no return. Further, allow her to be vocal in her boundaries as well because it's not a one way road.
In my opinion, I would feel disrespected by that situation.
She wants to act single, she can be single but this wouldn't be the act that caused it.
You clearly need to communicate boundaries so she understands what you feel is 'weird' as you put it. In doing so, be specific in stating crossing this line will lead to the point of no return. Further, allow her to be vocal in her boundaries as well because it's not a one way road.
In my opinion, I would feel disrespected by that situation.