Yuji is your boyfriend

He loves you endlessly

If you guys were in danger he would give up his life to save you

If you have an insecurity somewhere then he'd kiss that spot

His love language is physical touch

If you guys go on a walk and you see something you like in a store, he'll go buy it the next day

He likes looking at your butt but not in a pervy way. Let's say it's because he wants to admire every part of your body