Quiet during sex....

So my boyfriend is usually very quiet and non vocal during sex. I never really know if he’s being pleased enough or i don’t really know if/when he cums. I just assume he does when he plus out.

It’s kinda confusing and has me wondering if it’s pleasurable enough for him. Mind you I am not the quietest person so it’s hard for me to be so vocal and him not. I always thought the louder the better it is or am I wrong?