I went on a trip few months ago. I met a girl on the trip and we bonded quite well. I have never been attracted to someone like that since a long time(have not been in a relationship since probably 7-8 years now). We kept in touch a little bit after that and now it's fizzling out as it happens after few months of meeting a stranger. But I just can't stop thinking about her. If I think practically, it makes absolutely no sense to be together. She lives in a different city, there is an age difference(she is 5-6 years older than me) and so on. I don't think she even thinks about me like that because of many of the reasons mentioned above. I don't know what should I do. I don't want to ask her out, because it absolutely makes no sense but I can stop thinking about her and want to be with her. I am hating this feeling so much.