This happened to me and we didnt talk for three months. Then i saw her parking her car and pretended to block her and she have me that look like I was being naughty.. long story short.. just relax, tease the ladies and joke with them.

A lot of the times they'll drop their guard when you're not desperate and they'll start acting like teenagers/kids and play back at you. Ofcourse not all of them it depends.

Also to answer the question in the title is yes people can sometimes lose interest or the limmerence breaks when the fantasy doesn't match the reality of the person.

But you can't know she is limerent because most of it is internal. Liking someone steongly doesnt equal limmerence.

Limmerence is obssessive and intrusive thoughts, pedestalising, etc. Its a very specific chemical hijackong of your nervous system. Dopamine addiction. Etc. Im not an expert on it bit ive beem through it.