If he insists on doing things that you are willing to do then that is a sign that he doesn't respect you. The jump from hostile feelings to violent acts is a small one, particularly when alcohol is involved. If he makes all the decisions about where to go and what to do without asking your opinion, he may not care whether you want to have sex or not. Guys like this usually have a bad temper, too. If he's rejected, he may get angry and violent and try to force sex on you.
Alcohol abuse can play a significant role in the occurrence of date rape.
Drinking has become a popular social activity and is seen as a way of setting the mood for romance. But after a few drinks, a woman may become too intoxicated to realize what's going on or to fend off unwanted sexual advances. Alcohol clouds judgment and decreases motor skills which may be crucial in escaping an uncomfortable situation before it gets out of hand. After an evening of drinking, the man may become sexually aggressive and perhaps even violent. This is an important question.