Always tell the truth, never hurt your friend (emotionally or physically), always realize that you make mistakes that need to be apologized for, remember that your friend will make mistakes too and...
Of course!.. meet someone, spend times with that someone, like that someone, spend more time wtih that someone, tell that someone, if they like you back spend even more time, love them, trust them.....
I would recommend just following their instructions since they are usually doing what is best for you. Getting good grades might help if they do not expect too much from you and if that is too...