She is definitely not being punished by rope. Rope is a metaphor for being tied down/committed. "I don't want to marry as I do not need *to get roped into some contract* until we just decide to call it quits or die." The full phrase is actually "Get roped into (something)." Get roped is not a verb—it's not even slang. And you never say you "WANT to get roped into something." You only ever "DON'T WANT to get roped into something..." You can say "(You) don't want to get roped into something" when it's something you don't want to do. You won't be FORCED to do this thing, but you'll be required to do it if you give even the smallest agreement. "I don't want to get roped into doing your homework." "I don't want to get roped into a conversation with your mother." "I don't want to get roped into more chores." Usually, you don't want to "get roped into something" that you would have to slightly agree to. And usually because you would agree to something small and then end up doing something big/annoying. Mainly, you use this phrase to say "I don't want to get roped into (doing something for someone else)"

"to get roped into contract" means " be bound by contract “ and you can only do things as the contract allows you.

"to get roped in" means to get pushed or forced into something you don't want to do.