Do I need to tell ny boyfriend avout my past relationship?

My boyfriend knows my ex boyfriend because they have mutual friends. 
 My boyfriend just called me and said I’m very mad at u as I found out lots of stuff and I have questions to ask you when I’m back home  from I will call you. I’m now waiting for his call and I nees fast advice how to handle this situation.
 I don’t want to talk about my ex who was a ***** and a cheater and now he wants me to answer his questions and I don’t know why he is mad and what questions he will ask. Im. AfraidCan I just tell him you can’t ask me about my past?

2021-04-07T22:27:40Z

Im 20 and bf is 28

Anonymous2021-04-07T22:43:56Z

Do you NEED to? Of course you don't. Whether you discuss your past relationships or not is entirely up to you, and if your boyfriend can't deal with that fact, then he's free to leave. Answer the questions you WANT to answer, and if he asks something you DON'T want to answer, say "That's really none of your business. And if you can't deal with that, and if you don't stop interrogating me about this, you know where the door is".