Why does my kitten cry/meow so much?

Could be boredom or stress (why can you go out & I can't)take him out for walks more often & get him toys that are mentally stimulating like a cat track with an enclosed ball ,give him treats like tuna when he's quiet.I know It will be hard with your B/F lying in but don't give in to his cries just ignore him until he stops reward him when he's QUIET for awhile (say what a good kitty & give him a treat) or he will think the longer I cry they'll reward me.Give him something with both your smells on it in his bed so your always with him. It will take a while but you will get Peace just takes perseverance hope it helps good luck.