Never trust someone so easily

Once I gave my friend 4 love birds for free out of trust I chose him among 2 friends and said him to feed them properly and take care of them in the name of our friendship. Inspite of which he bought a cage for 250 Rs but it was was way to o small to fit in a small clay pot so that they can reproduce so he sold the birds along with the cage for money and made profit out of it. Then he gave me a reason that he did this so that they can reproduce out of bigger sample size they'll have better options to pass on genome as this is the primary goal of any species to reproduce. Was he righteous doing this? Coz I gave him those birds in the name of love and affection and thought he would have kept them for life. Also once he told me that he sold them because they were too noisy😒😣