I met a (I think engaged) woman on the train and we ended up excessively eye-fucking for like an hour.

At a certain point she stands up, throws a big smile at me and goes to the toilet. The toilets have a digital display displaying from outside whether or not it's locked. It was unlocked. She remained there for 3 minutes and I was contemplating whether or not she wanted me to follow and fuck her. Well, as I was like "oh I'll wait 1 more min just to be sure" she came back looking at her ring on the finger in a guilty way. The eye fucking kept on going but we had to get off the train.

Should I have followed? Was this an invitation? I was afraid of rape accusations in the end and tbh it took me a while to get her hint.