The takeaway from "Marriage, Relationships, and, Toxicity" is that you will become more aware of your actions, your decisions, and the way you respond to those with whom you are in a relationship.
Give thought to your actions, measure them only against your own yardstick, and determine if you are going to continue letting things and situations take control of you or, if you are going to take charge and stand up for yourself. After all, this is your life and the only one that you are given. Make the absolute best of it and stop letting others ruin it for you. Stop feeling that you must accept toxic behaviors from someone with whom you are married or in an intimate relationship with.