If your question is can they sue you, the answer is yes.

While you would be much better off with a medical discharge you can decline and request to go home.

you say he "forced you to sex." If you are claiming you are the victim of rape you need to contact the police.

You sue them by hiring a personal injury attorney.

It is a ticket to jail. Don't do it.

You are entitled to a refund if you want to travel back to where you purchased it.

If you are filing an appeal, there has been a conviction, which would seem to answer your question.

A 19 year old who wants to date a 15 year is a likely predator. Speak to your parents.

Scam. Ignore them and keep your clothes on.

You cannot sue because of poor customer service. You can take your business elsewhere.