First of all I don’t under your Question completely. As you write “My spouse is completely devoted to his siblings and never looks after me n my kids.” You means the Kids he takes care, are not yours???????
Looking at your Horoscopes I see that there is 9-5 Bhakoot dosha, this is called Navpancham Bhakoot dosha) . This dosha basically related to dissatisfaction in terms of love and romance. The physical and mental satisfaction will be missing. Also your Vashya score is 1 out of 2, indicating that there is less impact of one over each other. You can have good understanding some days but generally you are more towadrs disagreements.
Such things ruins marital life, more so in the Venus and Rahu period that you are going through. Venus is debilitated in the natal chart. Venus is the karka for marriage and Rahu will being complete dissatisfaction. You should do the remedies of Rahu and Venus for improvements on this front.