Complex sentence: Tony fully apologizes to her and sits down with her, admitting he isn't feeling whole either, and they have an amicable conversation about both of them wanting to go back in time to fix their relationship in hope of a happier ending.
Split into simpler sentences: Tony fully apologizes to her and sits down with her, admitting he isn't feeling whole either. They then have an amicable conversation about both of them wanting to go back in time to fix their relationship, in the hope of a happier ending.