Premanand Maharaj Ji
How do I stop overthinking and get over a partner who has betrayed me?
Remove the inner attachment
When a partner lives against dharma (right conduct), remove the bond from within, because mamta (the sense of 'mine') is what destroys us. Brooding over the matter turns the mind away from Bhagwan, and that becomes a very big obstacle.
If someone walks the path of dharma, we support them in following it. If they walk the path of adharma, remove the bond from within.