What to expect if I overstayed my visa but now want to return to my country voluntarily?

Question Details: To make a long story short, I came to Puerto Rico on vacation to visit my boyfriend and we ended up getting married. The thought of leaving was heartbreaking, so I overstayed. That was 9 years ago, now my spouse is emotionally abusive, and I just want to go back home to England. I would be getting a ticket, my passport doesn't expire until next year. I know that I will be barred from entering the U.S. for a minimum of 10 years, which I am completely fine with at this point, but I'd like to know if there are any other consequences, such as detainment or being made to pay a fine?

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