Graha is not in our ancient canon, sorry. Graha as he is would not be into freyja, but then again I dont know what kind of person ancient graha was. I'd assume he wasn't in amaurot proper so they never met. I think the beauty of wch/graha is that they are not cosmologically destined together but they perfectly met each other at the right place and the right time against all odds that they shouldnt be together