From my own experience...when girls tell you about their emotions one night, i dont take it seriously. However, if it happens over the course of many nights when they are drunk (ex. calling you while they are drunk saying you should hang out, or being all over you all the time while they are drunk) it is probably true.
My own examples a girl i dated once months ago that i did not have fun with told me she loved me and thought i was hot. Actually talked to her the next day(she is one of my friend's friends) and she did not remember being around at all!
Ex 2. I know this girl through quite a few friends, and even though she has a BF, she hits on me when tipsy(I didn't do a thing guys, i am more admirable than that). Not just once, but many times. When she broke up with her BF, she started calling and talking to me more!(what a surprise)
It is hard to tell, but hopefully this helps