I would say the comma is optional. To me is a restrictive clause, so there should be no comma. But some might argue the opposite.
Although I understand what a passive and active sentence is, I find this sentence challenging. Not that I would ever completely want to rely on MS Word as my authoritative guide, I found that by rearranging the sentence, it became acti
It's only the first clause that's passive. The second clause remains the same.
Instead of "if you have been blessed with a mate", you would have to use "if ... has blessed you with a mate". You need a subject where I left a gap with .... What you fill in there would depend on you. "fate" would appeal to me, but there is a great variety of other possibilites for the subject.