Some women (and men) are uncomfortable with their dating partners having more than one sex partner at a time. Different dating and attachment styles. It sounds to me like you and her may not have had a conversation about that. If you did tell her you're having sex with other women, she said that's ok, and then got upset, well, that's on her. But just from the things you said, it sounds like that's not the case. If it was the case, it sounds like she didn't know herself well enough, and was very turned off by what happened. Her texting you all night well, I don't know what to say about that. It does sound like she got attached (which in my opinion, is still not "weird." Maybe it is to you though), or is trying to fix something. Either way, you're done now, so just move on.