Look for common threads in the arguments. I can think of a bunch of random possibilities:
- She's got a certain rhythm to her days and you are interrupting it.
- You need an outlet for certain aspects of your personality (assertiveness, problem solving) that you used to express through work and now you're directing them at her, because you are not using them elsewhere. My DH does this occasionally. I remind him that he's not at work and he needs to turn his work-personality off.
- You have energy to notice things you didn't have time to notice before, and want to change the status quo.
- She (or you) need a certain amount of personal space or alone time and it has gone away.
- She might perceive you as being needy, if she's used to you being away at work and occupied.
One thing you might try: Find something to do out of the house for a few hours a day, to give you both a little space. Gym? Hobby?
One thing you might say: "Hon... We seem to be bickering a bit more since I've been home. What do you think is up?"
I have to imagine that most couples would have an adjustment period after ER and that it's a normal thing you're experiencing. Even when you love someone to death you're probably not used to being all up in each other's faces all day.
As lovely as the face might be.