Let’s say there ARE pressures to date a specific person. There will always be pressure in life to do something you might not want to do. If it is something truly distasteful to you and not something you HAVE to do (like get immunized against something, or go to the dentist), you grin and bear it. Life will throw all sorts of unpleasant things our way. We grow up when we learn how to deal with these situations gracefully.
If a girl does not want to go out with a boy, she should say so. Period. If she never went out with him to begin with, she should give it a chance. If he is not for her, she can say no to another date. If she is too shy/immature/thoughtful (note that I am factoring in the idea that she simply doesn’t want to hurt his feelings) to be able to say “no” then she has to learn how to do so. It’s called being an adult. And btw, maybe HE doesn’t want to go out with her again anyway. NEVER be obnoxious on a date. It will come back to haunt you. Guys talk. Worse than girls, sometimes.