Feeling like a guest in your own house after a remarriage is common. It often fades as new routines settle in.

That strangeness has a cause, and it is not you being difficult. When the rules of a house change, where people sit, who decides, what the evenings look like, your old sense of belonging stops matching the room, and feeling like a visitor is an honest response to that rather than a sign of disloyalty. It usually eases, and what eases it is routine rather than effort.

If you are in this, you might pick one small thing that becomes yours again: a chore you own, a night you cook, a corner kept how you like it. Telling one person in the house how it feels can help too.