Sweepy, you asked if it could be considered a sexual assault. In my opinion, the answer to that is no legally and practically speaking. If a man has no indication a woman has changed her mind about what is happening between them, I do not see how that can be in any way a sexual assault. I do see it as being very unfortunate and I am sorry this has happened again to you. I do not think "blame" is appropriate, but certainly it's good to take responsibility for your actions that seem to precipitate this happening to you, and working toward changing those and being able to speak up for yourself.