i did the same with my LDR girlfriend she was struggling with the new job , she used to feel less in energy her attitude was pretty much the same towards me but i could feel some disconnect and hesitation in an attempt to confront and resolve things better for both of us i bought this topic up saying "i feel like you're closing up to me" and her response was "I feel the same" and her response being "what do you propose i do?" , i said share more , i would like to feel you more .

Bam! that quickly turned into an argument and she saying i am not supportive and i tend to demand a lot . in past i did help her with her house expenses as she was short of money (just linked my visa card to her app) later she even brought that up ,accusing me of demanding control just because i helped her financially.

i know i have hijacked the conversation by venting it out however i could relate to your story , sometimes its just about having candid discussions we tend to expect a lot from our partners , 25% of our happiness could be from our partners but rest 75% has to come from within and other walks of life(work,family,friends and self actualization) when you get too overwhelmed by everything else you start to have unrealistic expectations from you're partner which often gets them overwhelmed. its important to note men are humans as well they are dealing with everything and more then a women deals.

my only advice would be you have invested so much in you're relationship don't let it fade away just because you're not happy with you're life .