We are 12 years together, both in our 60's. She works three days a week and I am now semi-retired. For the last 7 years I do most of the shopping and have cooked our supper 4 or 5 times a week, always fresh & healthy food and we tend to watch the evening news on the iPad at the same time. Afterwards, I generally clear up after although sometimes she will or we share doing it. Including prep and cooking time it takes me a few hours on average and I am happy to do it because I love her and understand that she is tired from work. However she will often finish her meal, get up from the table, open the dishwasher put her plate etc in then close the dishwasher and do something else. This is whilst I am sat at the table having finished before her (watching the news) and she leaves me to put my own plate away. It has happened twice this week and it upsets me that having done everything she can't reciprocate a little, she also rarely says thanks for the meal but always eats everything!. So last night I asked her what went through her mind when she does this (I have mentioned it before) and why she doesn't clear mine as well (I always clear her plate)? Her response is "you are perfectly capable of putting your own plate away". This makes me feel completely unappreciated and my response tends to be along the lines of "well you are perfectly capable of doing your own shopping and preparing your own meal". This then leads to a ding dong argument that achieves nothing apart from the internal damage that goes with it. I know that the sensible response would be to ignore it and just get on with clearing my own things however when mixed with the other relationship issues that change over time I worry about her commitment to the future. We are generally OK and strong on intimacy but I have to accept that she is the type of person who will chat about nearly everything apart from her own feelings which are a closed book and always have been. When it comes to discussing feelings and talk about the future (marriage is not an option for either of us) I get nowhere and have suggested counselling to improve the communication between us but for her this a big no no. So for me I have to look at the evidence of her behaviour to try and work out what's going on in general.
It wasn't aways like this, maybe just the last few years, is her behaviour mean or am I overthinking it?