Melanie Martin made a post asking her followers to make a donation to a fundraiser in honor of Aaron.
One critic asked her to go to work, insinuating that she was using the proceeds for herself.
She confirmed that the money was going straight to the charity.
The model had replied to Aaron's talent manager jab that she sold the late singer’s plaque.
She called the man, Taylor, disgusting, claiming that he ‘took Aaron's microphone 4 months ago.’
She also recalled that her ex beau asked her to text Taylor and tell him to return the mic.
Aaron gushed about their engagement to Wendy Williams.
Melanie, who also featured in the conversation, uploaded a clip of the moment to her Instagram Story.
A previous post showed the lovebirds in a hot tub.