What made you fall in love with your OH?

There's a thread called 'what made you fall in love with comedy' so I thought I would start this one.

I fell in love at 21, he was back and forth from his seagoing career. When we got together, I was immediately at ease with him, and he felt like one of my best friends that I could talk to about anything. We just knew that we would marry and make a life together. We must have been right, we're still together 58 years later.