Money taken by boyfriend in the name of love marriage

I want to take opinion in respect to the financial benefits taken by my boyfriend who was having affair with me. he took money from me (aprox 40K). he asked money from me against medical treatment of his father. his father and mother were suffering and he borrowed money from me. now he is not ready to return the money. i have been following up with him since long but could not get any solution. he promised me that he will be marrying me, but suddenly he refused to marry me and told me that he is involved with some other girl and cant continue the relationship. he introduced me to his family members that he wants to marry me but now he is not ready. i gave my hundred percent support to him when he was not mentally settled because of his mothers treatment. now he doesnt pick my phone. only thing i want my money back. he is not ready to return it. he always try to avoid my phone. if somehow we talk he will never say a word to return the money. i have transferred the money through various payment apps (google pay & phonepay). he took many gifts from me for which i am not claiming any money against the expensive gift he took from me. i want my borrowee money back from him.