I agree. Loyalty is too power to your s/o. Is like depending on them for your happiness and when that loyalty isn't returned, you feel broken.

I have written about why trusting too much can be toxic in a relationship. If you care to check it out, here it is.

https://medium.com/illumination/this-is-why-trust-in-a-monogamous-relationship-is-toxic-7c5d341b7f54