uhc's link in the OP gives us a TMZ link, but there are others if you google, all similar, all between the warrant being issued on 07/11/19 and now, but some offer (a little) more detail.
NO explanations for the 8-9 month delay between the alleged rape and the very recent warrant.
She explains "he let her go" by telling him she had a friend waiting downstairs who would begin wondering if she didn't return soon. The rape kit exam was done asap after she was freed, not anytime more recently.
Maybe this began consensual, things got too rough during, she employed "no," or "stop," at a point where even a reasonably considerate man has trouble complying, and she got angry?