This is the first I've heard of the allegations, and I'm not a reader but my husband is. Regardless what's going on in his personal life, I'll just say this...
Don't adjust your feelings about the stories of his you've read and been inspired by. Those were important times in your growth as a writer and made you the writer, and probably person, you are today.
The fact is, for millennia, men have used power and money to corrupt and take advantage of others. Mostly women. No, this doesn't make it right, but we need to remember, these are just allegations against Gaiman. Nothing's been proven.
We're living in a culture of sue-happy people, and they'll go back decades if they think they can make a big score now that So-and-So is rich.
Let's see where the law takes these allegations before passing judgement on Gaiman as a person, but keep your personal experiences of him as an author and the books you've loved for years inside you. They're part of you. Don't make any poor decisions on his part in his personal life become you too.