Hi hodasalim,
I get that it can take its toll when our SO's seem to be emotionally shut off from the world and us.
For me, it felt reminiscent of being a child when there were all kinds of wacky things going on with my family; my immediate needs were far from being met. I somehow felt responsible for the happiness of the family.
My partner has had his own way of dealing with things long before I came into his life. Realizing this has helped take the responsibility off my shoulders. To let him work things through on his own. The less involved I have become, the more open he has.
I stay involved in my own life
For me, that involves day to day stuff-- my job, time with my dog, dinner with friends, a walk through the bookstore, planning my gardens, cleaning out a cupboard or closet, getting the telescope out, shredding papers... . etc Just life stuff.
Nothing extraordinary or over the top. Nothing aimed at him to cause a reactionary response. I am busy living.
And in return, he has responded very well to this
Does it sound plausible for your own situation?