Backstory: I e-mailed my mom asking her for motherly advise on how to get my boyfriend to help me clean up around our apartment.

Ok so this is advise from your friend and not your mother. You have to make him understand that you are not his mother. You can suggest that if he would like to continue to be in you good graces….ie your pants that he remembers you arent the maid or the cook. Good luck.