Long story short, My LTR, well, now EX-LTR texted me today saying that she won't be having sex with me unless she sees some "improvement."

I text her back, saying "So you're not gonna have sex with me unless I improve in some way that you seem fit?" and she says yes.

Then I say "Lmao Idc. I don't need sex from you I can get it elsewhere" she then says call me and "what the fuck is wrong with you? I didn't do shit to you"

Then we get on FaceTime and she asks why would I say that, and that she was serious about what she said. I say that I was serious too and if you wanna stoop to that level then that's on you. She then says she doesn't wanna be in the relationship anymore and hangs up, only to call back 2 minutes later and ask if I cheated on her, and I say no because I truly didn't. And that was it.

Now she's unfollowing me on all social media, changing profile pictures and all the nonsense.

Did I handle this properly? What now?