You and him have been together for a while

He isn't the affectionate type but he still loves you dearly even if he doesn't show it. His way to show his love is buying you things that remind him of you or spending quality time together.

He isn't the type to get controlling (he might get jealous sometimes but not on an extreme level). He's very loyal

He isn't the biggest fan of PDA. The only thing he might do in public with you is hold hands or pinkies

(He's a green flag)