I'm wondering about any advice on how to tackle this sensitive issue with my DF.
For context, he had an extremely traumatic childhood. I won't go into too much detail but imagine the worst thing imaginable happening to your primary caregiver in your early teens and then the remaining parent keeping the home as a time capsule of that dreadful event for the rest of their life, and back in a time where things just weren't discussed and certainly no counselling or help given.
My early childhood was lovely, towards the end of primary school things got very difficult jobs wise for my parents where we lived and after lots of loud arguments (while we were in bed, but still lots of shouting) we were moved many hours away to where both sets of grandparents lived. From then on my DF would enter what he has since called (only to my mother) "Dark moods". At this time, he doesn't say anything nasty but his whole attitude changes. He becomes very monosyllabic and has a whole aura that made everyone walk on eggshells around him. He worked loooong hours, night shifts so we put it down to him just being shattered. I moved out at 18 and, while I have a good relationship with my parents, I never went back to live as I didn't want to feel on edge like that again.
Since retirement they have moved to be closer to me and my 1 year old. They offer me a lot of help with her and both her and him light up when they see each other. He is very patient with her and always in a good mood. However, things have started to slip when he is with me. He will never be in a bad mood around her but he goes back into these "dark moods" around me. I have had many honest conversations with my mother about how this makes me feel (basically like a huge ball of anxiety and like I want to cry) but all she will say is "I know how it makes you feel, imagine how it makes me feel too".
Things are ok at the moment as my child is young and cute but I worry about when she is a stroppy teenager and I don't want her to be around him when he is like this. I don't feel like I can confront him as he would go into a HUGE mood and make life very awkward for me. I feel sad that these "dark moods" have come to my safe area where I like and it has really made me reflect on my significant mental health problems in the past where I have struggled with depression and hideous anxiety. I don't want my little girl to be affected in the same way.
He is not a bad man but I don't know how to address this without feeling like a small, scared child again.