United Kingdom, Sept. 17 -- Selena Gomez found it "stressful" when Benny Blanco sailed from the US to the UK to see her for her birthday.

The 38-year-old producer has a fear of flying but was determined to see his wife on her big day, so travelled across the Atlantic by boat, and while the Only Murders in the Building actress found the gesture "very romantic", she was constantly worried about him.

She told People magazine: "I wish he was flying right now, but he doesn't fly.

"He took a boat to see me in London [this summer when I was working]. It's very romantic, but also equally stressful if you're the wife. You're just hoping he's safe. I have a handkerchief, I'm crying, I'm waving him off and [sings] 'I'll be saving you...' Yeah, it...