I tried to connect the closest point on the line together.

I used to wrangle to archive this. One connect the original point together from scatter node, the create a new group for newly created point on the line made from point from original point.

but if use the same logic on the new group it will always makes a line to the next point on the same line because it is the closest one.

How can I makes it only connect to the closest point from another line that isn't occupied by another point only?