I’ve gotten past the stage of early friendship and I’ve definitely formed a close bond with them but now what?

I’ve always confided in them and they’re a really good friend but now we’ve gotten closer, I have no clue what to do now. When we first met we weren’t friends but I had some issues with my social life and to put it shortly, I reached out to them since they were pretty mush the only person that didn’t outright hate me. We got to talking and she helped me out a lot. I’ve thanked her for everything she’s done and we hang out occasionally now. But her friend group hates me and we can only talk over WhatsApp. I’ve run out of things to talk about so what now?