URGENT

Basically. I'm 14 and I've been seeing this guy. I've met up with him twice and we've kissed and stuff. Any ways. I'm on holiday with my family and I was looking down and my mum was like what's wrong. And I for some reason said "(his names) grandad has just died". They were like oh that's sad and stuff but I realised how stupid I was. I didn't say anything else. His grandad is really sick and he will pass away soon but idk why I said it. Then I've now pretended that he's on a life machine and they don't know when or if they're gonna pull the plug. So it gives me the chance to say he's recovering. What the hell do I do?!