Mike Heslin has died at the age of 30

He wrote on Instagram: "On July 2nd, my husband, best friend, and soulmate @mikeheslin passed away from an unexpected cardiac event after a week long battle in the hospital. Michael was young, in perfect health, and the doctors have no explanation for what happened."

Scotty hailed his husband a "real-life guardian angel" and admitted meeting the 'Holiday Proposal Plan' actor was the "best thing" to ever happen to him.

He continued: "Michael was brilliant, selfless, talented, and a real-life guardian angel. He single-handedly carried me through multiple rounds of cancer.

"He was the first person everyone would call to share good news with, and he was the perfect person to call if they needed a shoulder to lean on or the best advice.

"He truly was the sweetest, most caring, and loving man on earth, and he brought out the absolute best in everyone who had the pleasure to cross paths with him. He moved through life with such ease and confidence, and turned everyone around him into a better version of themselves.

"No matter how difficult things got, we knew that there was nothing we couldn't overcome with Mike in our corner.

"Michael, meeting you was the best thing to ever happen to me. You are my world. You are everything to me.

"When I felt you take your last breath, my heart shattered into a million pieces. If I had the power to trade places with you, I would do it in an instant. But I will take it one day at a time like you always told me to, and live every day in your honour."

Tragically, the couple had been discussing starting a family before Mike fell ill.

Scotty wrote: "Just a week ago, we were in the early stages of starting a family and would regularly share our favourite baby names for our future kids. You always told me that you felt like you were meant to be a dad, and I couldn't agree more.

"You would be the world's most perfect father. If I ever become a dad, I am going to name my son after you and hope that I manage to raise him to become at least half the man you are.

"You were the most generous and giving person. It brings me peace to know that, through your wish to be a donor, you have given the gift of life to four different families.

"We are 3 weeks away from your birthday and 4 months shy of our 1 year wedding anniversary, but I know that you are in a better place and that heaven has gained another angel.

"Michael, in the words of Shania Twain: I'll love you "forever and for always.(sic)"

A GoFundMe campaign has been set up to help cover funeral and hospital costs.