There's been a lot of talk about consent lately online, and I wish to join in the conversation. Most conversations revolve around sexual situations and how you should not expect your partner to say "yes" just because you want to do something. I'd like to expand the subject further, which I'm sure many have already done, and discuss consent in all situations.
You are completely entitled to your own choices and life decisions- no matter what others say. Obviously you shouldn't make decisions which will deliberately hurt others, but if you are unhappy, you're completely allowed to make a decision which will eradicate this unhappiness. If you're in a poisonous friendship, you can cut that friendship out. You are allowed to say no to being friends with that person. If a teacher/parent is trying to force you into taking a subject you don't wish to take, you are within your rights to tell them "no" and not make that decision. Or if your friends are forcing you into a situation you are uncomfortable with, you can say "no".
That's not the most important part of this discussion though. Never, should you ever, put someone in a position in which they could be uncomfortable without informing them of the situation and being 100% certain they entirely consensual with it. Without that person's consent, you have no right to force someone into doing anything- no matter how little and pathetic you think it is.
It's times like this I wish I was good at writing so I could get across just how passionate I am about this. You should never be put in a situation where you don't feel in control of yourself and please do really evaluate the situation you're in and remove yourself if necessary. As always, if you need further advice on this, my email address is in the 'Contact' page