I cried, and now i feel so stupid! Help please?:)?

basically, My brother was grounded, but wanted to go out, so he did, and my mum had a massive go at him, and was like ''You get back in here or your not coming back'' And i was like .. 'oh no!' so he ran off and i went to find him, and i did, but i couldn't help crying, then all of his mates came out and saw me, so i ran off.. Then he was like... 'why is she crying over me..' so now i feel really daft''/ what should i do?:(<3