I am so sorry this happened to you.
I had something similar happen to me about a year ago (trigger warning for the rest of my story which contains some details of my own assault).
I started seeing a long term male ''friend'' of a few years. Big mistake.
The second time we went out and then had sex, I quickly started feeling really uncomfortable, not enjoying it and it became painful.
I told him clearly to stop. He did not and instead force himself on me while I started crying hysterically.
For a while I was in shock after the event and blamed myself (after all I had initially consented to sex). I cut all ties with him after that night and after contacting the last woman he had dated (because she also had ''disappeared'' out of the blue and I was concerned that something might also have happened to her) she told me he had also been abusive to her throughout their short relationship.
It was only when I ended up seeking help from and talking to a sexual health clinic that the specialist nurse gently made me see that this was sexual assault, no doubt. He also removed the condom at some point making it also a case of ''stealthing'' because that vile creature gave me HPV.
It was really hard to wrap my head around all this because I had known him for several years and I was in denial after the event for a while.
You clearly withdrew your consent and then your partner took advantage of the fact that you were under the influence to assault you.
I would try to speak to someone if I were you for support and to help you make a plan to leave. Like a charity that supports women with abuse partners/victims of rape. Also get yourself tested for STIs.
I received specialist trauma counselling which was really helpful in helping function again.
@BerriesOnTop · Today 06:13
''I know I will get flack for this, but …I just don’t understand why we need to label this. It’s seems to be poor/bad communication more than anything.''
What is it about the word ''stop'' that you don't understand? Having sex with someone who has clearly told you to stop is not ''poor communication'', it is rape.