For one, she has already told me 3 times that she's not sure we're compatible (for very insignificant reasons) and I had to talk her out of it basically.
Why would you talk her out of it? This sounds invalidating to me. You two are in the early stage of getting to know each other. Maybe you are compatible, maybe not, but taking an honest look at this will tell.
Her reasons may seem insignificant to you, but if she's concerned about them, they aren't insignificant to her.
While this maybe true. I have run into this twice with my BPD loved one and they were very insignificant and not actually true.
The first time she said we "don't even like the same foods." No we don't like all of the same foods, who does? We never had a problem finding a restaurant or picking a meal and did enjoy many of the same things.
The Second time it was that "We didn't have the same sense of humor." Also untrue, there are plenty of shows and humor that we enjoyed together.
In my case these concerns she raised were when I was being split and it felt like it was her looking for reasons to justify feelings I know that even she doesn't fully understand. Were and are back together after these concerns were raised and they never came up again.
Us "non BPDs" that are here are here because someone we deeply love has these traits and it can make things really tough. We are here for advice and help with making it work because we love them and not to demonize or sooth our own feelings.