Graced, The method of doing a 180 is the overriding method regardless of the kinds of problems you're experiencing. In short, If what you're doing isn't working, you've got to make a switch. Most people experiencing the MLC problem are pursuing at first, so the LRT would be a 180. However, if your primary response has been backing off and you've gotten no reaction, then, true to the do a 180 method, time to switch gears.
Without knowing more, it's hard to advise, but re-read the section on doing a 180 and devise a plan.
Although the book is geared to couples living together, the same principles apply to couples who have separated. Naturally, there are more challenges because when you change, it's difficult for your partner to notice these changes if s/he is not home. However, you have to become more creative in getting your message across about the "new you." Besides that, all the methods apply to both situations. If you or other readers who are separated have specific questions about the application of the methods in Divorce Remedy to their unique situations, feel free to ask. Michele