You are more than welcome to complain about your Mysterious Melody if you really want to, but remember that entering the Mysterious Melody is at your own risk. If you get an 'active' Mysterious Melody partner, that's great. If not, oh well. That's the chance we all take when we sign up for it. Just shrug it off and remember... it's the thought of giving that counts.
Also, Mysterious Melody runs all month during Luminaire and you can sign up for a new partner every day.