BPD speak is sometimes difficult to translate into English but her last couple of sentences make me feel she's leaving a door open for you. And maybe she's also saying there are others who are interested so don't wait too long. Or then again, maybe it's something completely different
Best to not think about what she says but observe her actions instead.
Let us know how things evolve, it seems pretty rare to get a BPD to enter a genuine reciprocal friendship.