What should i do to make it right?

I had a date with my first girl again. we meet like after two years we have kept talking for about 4 hours but we were just having a friendly conversation .My question is that i don't know if she still have felling for me or not but i am now having a strange felling ,i just couldn't stop thinking about her .I want to call her and would like to check if she is also having the felling also?