Was this clever narcissistic abuse or was I being too sensitive? They sounded sarcastic when I said I had bills to pay. (Their rent is more expensive)

She brought up that she had bills to pay, so I (male) said yeah me too. They then said "sure you do" sarcastically.

Due to prior relationship, we talked about each other's rent and their rent is much higher than mines, but so is their salary.

I then asked them, were you trying to make my bills invalid to yours?

They replied back if they had something to say, they would make it worse than just that sarcasm.

That night, they kept on commenting how I was pretty much a fat guy. I didn't think much of it at the time, but I said yeah, I'll start exercising. I literally thought nothing of it other than maybe just fun pokes.

The next day we hung out again, and she then commented on (Say for sample) my forehead being larger. She then dropped a comment that even if I worked out, I wouldn't be able to change that.

I then thought of our previous conversation and got angry that it seems she's trying to poke at me to get a reaction and then she said I was too sensitive.

Later at the house, I was trying to help her clean some fleas off her bed. We had a safe spray that kills fleas but can be used on furniture. She told me she had some fleas on her blanket, so I remove the blanket from her bed and sprayed the blanket. Again, this spray was safe for furniture and clothes, etc. I used it on her blanket on the sofa which she was okay with.

She then called me dumbass, retarded, etc. Usually it is in her language, but she was using it quite more than normal, and her tone was different.

I said I had enough and was going to leave, right when I was outside, she said sorry. But inside she started using those names again, so I just left.

Not going to lie, I believe she was trying to get me pissed off for some kudo points to who knows whom. There was a part where I decided to just leave because I felt it wasn't going to be good if I stay there and might had gotten into an argument.