Make sure you have enabled Advanced Scripting; Set a Global Script -
IF %VARIABLE > 100 THEN
BEGIN
IF %ONCEONLY < 1 THEN
BEGIN
%ONCEONLY := 1
$DEST := @P200
END
END
%VARIABLE is the Relationship Score; 100 is whatever you want to set the trigger to; %ONCEONLY ensures it is only run once; 200 is whatever page you want it to go to when triggered.