spike, just read your other thread. what happened to you was a terrible thing, and it should never have happened. i am sorry the guy you are seeing responded in such an unsupportive way, who knows why he got up and left, but i doubt it was for any of the reasons you are telling yourself. perhaps he was also assaulted or abused and it brought back difficult feelings for him, or perhaps he is just a selfish jerk. either way you do not need to punish yourself for what happened then, or happened tonight.
it seems you have already taken some pills, so i ask you to go for some help. a good place would be the ER. it seems like what you really want is for the pain and the shame to end, and believe me, those feelings will recede as you begin to heal from the terrible thing that was done to you.
please reach out for some help, and do it now. we can talk about how to get stronger, emotionally, another time. tonight you need to get to a doctor and get safe.