Boundaries have to do solely with what you are and are not willing to accept and what actions you will take if your boundaries are violated.
Time clearly matters TO YOU. So, you need a boundary regarding how long you are going to wait to see progress, to act, to leave the M, etc... It need not be precise, but it needs to be clear enough that you quit feeling like a victim and own your role in accepting a sexless M.
You don't seem to know for yourself what is OK with you right now and that is a big problem.
