PLEASE HELP

So I broke up with my girlfriend last Friday on our anniversary because I just couldn’t do it because it hurts not able to see her or hang out with her at school because 3 months ago our parents told us not to date anymore we could be friends and we tried being friends but it was really hard so we ended up being together still and keeping It secret from our parents and I just feel really bad because I really broke her heart and she’s trying to get me back with her and we absolutely do love each other still and I care about her and I really wanna tell my parents about getting back with her but I’m afraid they might get mad and beat me up please help what should I tell my parents