about every 10 minutes lol
I tell my wife I love her daily... repeatedly... in almost every conversation.
Each morning as I approach my work place, I leave her a voice mail message from the car - just to greet her in the morning when she wakes up and let her know I arrived at work ok and can't wait to get home to her. Love always expressed.
It's not uncommon while at work that we'll have a quick conversation or two over the phone. More love expressed.
On my way home from work, I'll usually chat with Mrs. H. while I drive. Even more love expressed.
After getting home, it's a big hug and kiss. Much more love expressed.
Hit the treadmill and then dinner time. We'll chat at dinner, and express love for each other during the conversation...
Ok, getting long winded. I think you get the picture. At no time does my wife ever question how I feel about her, nor do I question how she feels about me. We express love (as in "I love you") very frequently. One never knows when one will die - best to express all the love you can before that time comes. :)