I knew it was love when he called me to tell me he rolled his truck and my first instinct was to get in my car and go to him. I picked him up from the hospital. Two days later, I spent 5 hours on the road helping him take care of his totaled truck and get something new to drive.
Postscript: Two weeks later, his transmission went out. I helped him again without a single hesitation. He told me he loved me that evening.