You could start by having an honest conversation with him and expressing your feelings. Maybe try to figure out what went wrong and work on changing those things.
Often, it involves showing genuine change and growth. Maybe work on becoming a better version of yourself and let him notice. Also, surprising him with thoughtful gestures or doing things he loves can help.
I don't have a definite answer. Maybe it'll come back when the storylines and art are ready for a new installment. Just stay tuned for any official announcements.
In many places, it depends on the level of privacy of the back deck. If it's completely secluded and not visible to the public, it may be within the realm of legality. But if there's any chance of being seen by neighbors or passers - by, it could potentially violate public decency laws.