Dominic West is reportedly planning a lavish 50th birthday party for his wife Catherine FitzGerald.

Dominic West and Catherine FitzGerald

Dominic West and Catherine FitzGerald

The couple's marriage hit the headlines last year when he was photographed embracing co-star Lily James during filming for the TV series 'The Pursuit of Love', but Dominic is now planning to show how much he loves with wife by throwing her an extravagant bash in the Cotswolds this weekend.

A source told MailOnline that Dominic, 51, has been looking for ways to show Catherine - who turned 50 earlier this week - how much he loves her and believes that the party will make her feel special.

Catherine recently reflected on the early years of their relationship with 'The Affair' star when they met at Trinity College in Dublin and described their romance as a "love affair".

Catherine - who married Dominic in 2010 - said of their short romance as students: "We had a wonderful love affair. We would look over Dublin, reading poetry to one another with the mountains in the distance. We had all the time in the world to explore the pubs and back streets and walk the canal.

"But at the end of the summer, I left him, and he has not let me forget it! But I couldn't have settled down with him right then forever. That would not have been a good idea for either of us."

Catherine also explained how and why they didn't rekindle their relationship until they were in their 30s.

She told the Irish Independent newspaper: "He was having a year out and came back to London to be with his daughter, and a mutual friend brought him to meet me.

"We were both, then, at the right time in our lives. And it was lovely to have that shared history, from earlier days. There's something about having lived a full life before settling down – I felt I could throw myself into family life and having babies with gusto. And I really went for it, having four in seven years!"