DBing is about being consistent for a period of time long enough for the changes you make in yourself to be real, permanent, and be trusted by the WAS.
I don't think that three weeks is enough time for your changes to be real and so I don't think your H trusts your changes yet, so you aren't seeing any pattern or behaviour change, with him.
If you are following the advice of the coach, would snooping, setting boundaries, asking for disclosure, requesting him to work on the M, or similar activities in keeping and consistent with your coaches advice on working on PMA, GAL, and being nice to your H?
If you are all over the map, that's what your H will sense and the results are likely to be more of the same.
