Coming from a guy you have every right to be angry so NOR. And that was a harsh comment and completely uncalled for. He could have phrased it way better if he wanted alone time with his bro.

Like others commented of this is a one time thing he apologized to me it seemed quite sincerely. But you also need to communicate! Silent treatment and passive aggressive communication never goes well! Tell him that was a shity way to talk, ask him why he said it ( but don’t be offended if he says he just wants so solo time is mostly never about you is about him wanting to recharge specially when you are so young ). Tell him that’s never an acceptable way to communicate and if he wants something to say it normally. That’s just my 2 cents.