Kale's fussy time

We learned in the breastfeeding class that every baby has a fussy time of day. Well Kale's is around 9-10ish. I normally bounce him around the house while patting his butt and he hushes and normally falls to sleep. Ryan says that this is spoiling him. Just as a mommy I can't stand to hear my beautiful baby boy cry. It makes me really nervous and it hurts my heart. I just can't stand it. Well Ryan has been letting him cry just a little bit and it has been driving me nuts. I know even at this age they are smart and already testing the waters to see what they can get. If you constantly bounce them when they are crying they are going to cry until they get what they want. Babies are very smart. However, I just want to give in. I can't stand to hear my baby boy upset. It is very hard for me. Ryan and I definitely butt heads on this, which ofcourse there is always going to be something that parents butt heads on. I definitely don't want our child to be a spoiled brat but it is just so hard. That little boy is my everything and I hate to see him upset. It is definitely my first mile stone that I have to get past as a mommy. We will see how I do.