Partner doesn’t know how to play a no trump – Bid Whist Review

My partner also plays the suit I don’t have after I’ve shown what suits I do have. Then when the rest of the hand is played he has cards in my suit in his hand. Really???? Why does my partner pull all the trump when we are the only 2 with trump and he has losers in his hand?
Review by one book down always on Bid Whist.