You can say you are seperated if needed.
Really, your marital status is nobody's "official" business but if you are wanting
to share with coworkers eventually.
I wouldn't share too much about your life upfront in a new job.
You don't know who the "gossip" is in the office etc.
See if any friendships develop and decide then.
Just ask other people about their families and interests.
People love to talk about themselves and that will keep things
off of you and focused on them.
You have no reason at all to be ashamed of anything Radiant.
Congrats on the new job