I would definitely talk to her. If it were me, I''d ask the MOH what she has planned for the bride, and I''d also let her know, up front, exactly what kind of time you can afford.
Something like:
"Hi, MOH I hope you''re doing well. I''m just dropping a quick note to ask about your plans for a shower or bachelorette for Bride, since I haven''t heard of your plans yet. Just to keep you in the loop, I am available to do XXX, YYY, and ZZZ on 00/00/00, 00/00/00 and 00/00/00. The rest of my time is taken up by school, and i wanted to make things easier for you as you plan this by letting you know what my availability is.
Thanks so much, and please don''t hesitate to let me know what the plan is!
Cheers,
Me"
I find that with people who are focused on some other pressing event or issue, it''s important to delineate your LIMITATIONS right up front. She may not be paying as much attention to this because of her own personal issues, which is absolutely understandable. However, it''s very tempting for people who are otherwise occupied to procrastinate and inadvertently dump the work/expense onto other people. If you let her know up-front what your limits are, she will be less inclined to do this. Frame the note''s verbiage so that it is automatically implied that, hey, YOU are the MOH, this is YOUR project, I can help, but ONLY during these times/dates, and I can ONLY do so much....but in a nice way....