Hi, I am not sure if this was sexual assault. I have been seeing him for 3 months we stayed in each other houses generally things were fine we both a bit crazy and enjoyed sex a lot. Recently we discussed and I agree to be tight up. First time was ok nothing kinky as I explained what I wanted and how I wanted it and that I am not into BDSM and don't want anything painful etc. next day he suggested (actually he stated next time he would do fisting and he put his all hand inside me- I said No then he repeated yes I think I say no few times and we ended the conversation). At night during sex I told him he can tight me he did and at some point he started putting his hand I washed sure it happening I am not sure I think I sad no he carried on he didn't ask me if I wanted it. I remember he sad something about me taking it all I don't know why I didn't scream loud I didn't want but I had my hands free so I grab his wrist told him to stop as he was moving it inside he stopped and we carry on I had so much air inside from what he did. I didn't not like it I get pain I was so ashamed next day didn't want to talk about he asked if I enjoyed and I sad I felt pain then he repeated "but did you enjoying?" Ignored what I sad about the pain and sad I would do Kegel exercises and all will be fine. I still had pain next day but don't know why did not really understood what had happened. Just 3rd day after realised what actually happened like I did not want to remember it and think and was ashamed to think and talk about this but it came back to me and also the pain didn't stop got my period 4 days earlier and it never happens also very painful much more painful that usually. I messaged him told him about the pain i had for days and he asked if this was from what "we" did ... and if it was "just" a pain. Next day I told him I didn't want it and i clearly sad No when he mentioned it he didn't reply to it just asked me to call him ... I didn't ignored him and we texted he sad he didn't do anything different to what we did before that I lead him and we stay in contact during and when told him to stop he did... and he never done anything I don't want. I have mixed feelings now I never agreed for it never sad I want. I sad No when he "suggested" to do it. Now he behaves like I let him like I wanted it. I don't know why I was not able to stop him when I realised what he started to do. He behaves like he didn't do anything bad he wanted to come see me take care of me he suggested seeing doctor make sure all ok I told him about the period that started 4 days earlier and is more painful. I don't know what to think about what happened