The stars announced in 2015 that they had welcomed a son.
The pair spoke publicly about their relationship prior to their split.
Amy previously shared how excited she was for their wedding, while also calling her now-estranged husband “the one”.
Amy told The Mirror: “Andrew is great – I’ve known for ages he’s The One.
“He’ll kill me if I say anything about the wedding.”
Andrew also touched on how well their relationship worked previously due to Amy also being an actor.
He said to Express.co.uk: “It definitely helps that Amy’s an actor. Who else would be OK with the absences or with you doing theatre on Christmas Eve? It helps so much if someone gets it.”