I am a good Muslim Palestinian , but my cousin said something that made me question my faith and family

My name is Fatma , i am a good practising Muslim Palestinian from Jerusalem /Quds , i am married to my cousin, i have a little boy 7 years old , i am in my late 20s . <br><br>My cousin is 25 years old , he is a good nice guy but he is not employed, he smoke drugs and sell them, he has been arrested before , he is crazy, he studies in Arabic university but he changed his major 3 times , he never care about religion at first but when the war in Gaza started he became religious, his speech became about Holy War/ Jihad and his face became pale from sadness and anger. <br><br>I asked him to stop speaking like witch he is going to an holy war, he said to me that i am separatist, he told me that the zionists are the enemy for both of you and me not on you, he also said "you think Israel are not the enemy for you and of course you and your husband are traitors, he finished his speech by saying "you are not my family" and he left from my house, i have not seen him for three days, he is my cousin and my friend and he has been like a brother for me, i am very sad, i am so confused i do not know what to say, my husband is not into religion he also said that my cousin is stupid, he also changed after the war in Gaza but now he became more arrogant and said "i do not care about this i am just care to provide good living for my family", but still i am very sad, i am very confused, i am thinking to call my cousin to tell him that i am his sister and family and i forgive him but i am afraid, what should i do?