A great resource about how one couple uses the Gottman resource Aftermath of a Fight in real life. Reach out and schedule a session if you could use some help or resources like the one mentioned here.
36 Questions to Ask Your Spouse
A key to falling in love again...
Power and Control
You may or may not have heard about the Power and Control wheel, or a tool that I often use in sessions to talk about the dynamics related to power in a relationship.
If your partner exhibits any of the dynamics described in the wheel, you may be in need of help. Consider reaching out to a therapist, or at least to a friend who has resources to help you safely navigate an exit from the relationship.