An X-Y interaction (XYI) facilitates rapid relationship pairing by creating tap or selection zones that intersect variables. The y-axis contains an indefinite number of variables (items) that can be assigned to x-axis variables (groups). “Items” are individual bits of information or data, like a transaction, song, item, or a to-do task. “Groups” are predefined buckets that apply specific rules or actions or represent specific things or people. Items get assigned to groups, and then the rules are applied to them. Items along the y-axis can be organized based on where along an x-axis a user selects an item. The selection can be by tapping, and one item can be selected for multiple groups.