Hidden relationship troubles, any suggestions?

My boyfriend and I have been together secretly for more than a year, he made it clear from the start that this relationship was going to be a secret and I've never had problems with it until 2 months ago, my cousin died and now everyone in my family is more or less insane and I have to support everyone.

Added to that my best friend is getting jealous that me and him talk much more than her and him and she doesn't know why, obviously I can't tell her because I promised not to to the person I love but this is starting to stress me out.

Yesterday I was out with her while in a call with my boyfriend I broke down, I didn't tell her the truth but this brought my boyfriend to tell me that he was tired of me being this stressed about hiding the relationship and wanted to out it to everyone.

This morning he changed idea and at first I was happy because I was scared of my friends reactions but now I feel sad, like something I really wanted to happen was taken away from me, what should I do?