TIFU by not asking a lady for her number/snap

Obligatory, was not today, and this account has no connection to me IRL, but I realised my fuckup today.

I (19M) was at the pub on Friday night with my mum and auntie (we're pretty close) and this lady (F19) saw me and said she recognised me, i never recognised her and had stated as such but we still chatted for a few moments, she then sat next to my mum and i zoned out, after what im guessing was a few minutes, the lady left the table and my mum had said:

"[Lady's name] Likes you, i asked her if she would be the mum to my future grandbabies, she then looked at you, gave you 'the eyes' and was like 'oooo maybe'". I assumed she was joking or drunkenly misread/misheard her, so I stated such.

Later, I was with my mum outside and we saw the lady, she came over to us and was chatting to us and I thought about asking her for her number or snapchat, but decided against it, reasoning that I was drunk and so was she, and nothing would've came from it.

TL;DR: Lady (possibly) said she would be the mother to my mums future grand babies after giving me 'the eyes'