I'd say the only thing you can do is keep at your course of action and keep talking, educating, encouraging. See if you can't get your partner to read on here or read a book from the book recommendations sticky, find the poly people in your area. Learn as much as you can so you will be ready for any change and find an alternative to what you have going on around having to stay in this relationship. Your lack of independence is a bit of a red flag for me and is not a good reason to stay. If you love him great, but having an alternative sounds like a healthier option. Just incase.
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