He always showed his appreciation for my help. A kiss on the cheek, a hug, or a hand over mine. Once after a difficult evening trying to get him ready for a calculus exam, he brought me flowers after he had done well on the exam. He even took me out for dinner. It almost felt like a date.
That's how we did things all that year. He still struggled a little but he managed to keep a B average for his freshman year.
Since I was in grad school, summer was just another term. Seth got a job in a warehouse where his strength was a very valuable asset....