“ We are all seperate souls and not attached to one another in Gan Eden. The husband and wife relationship on this earth is a physical partnership despite many having a feeling of deep connection to their spouse. ”
we can’t really understand any of this except through mashalim. but it is mentioned throughout the Gemorah how relationships formed here: parents, children, spouses, siblings, Rabbaim, Tzadikim, reshaim, chaverim, ones physical home and Shul are continued in some way in Olam HaBah