Be My Champion
Confronting your in-laws is one of the most awkward things a spouse has to do. So ask your spouse to be your champion—by championing your case to their family when boundaries are crossed. Discuss what you want them to do/say in your defense.
But I must warn you. Asking your spouse to confront their family on your behalf puts a lot of pressure on them. Be gracious by being sensitive to the stress they’re under to muster the courage to champion your case…and to do it boldly and with confidence.