What bothers you that you purposely stifle around your spouse?

It can be something about him/her or something like you can’t stand family birthday parties anymore or you hate your kitchen countertop. Do you hold in complaining about it because you don’t want to hurt their feelings or because you know they don’t want to hear you complain? It can be something they are already aware of, but you just try your best not to bring it up. How long have you been living with stifling yourself?

Assuming it isn’t about him or her directly, what stops you from changing what you are complaining about? I figure money is the biggest obstacle for many things.