Should i avoid my friend thats a girl or not?

ok, so this girl who im really good friends with and hangout with every day is startin to get super flirty and clingy. we used to date about a year ago and now we r just very good friends. i think i might like her again but i think she might b to into me and emotional. yesterday we were walkin downtown and i asked if shes hungry. I was with her all that day and she hadnt eaten, and shes really skinny. and so i was stupid enough to say shes too skinny and we need to go eat. so we keep walkin and she starts crying a lott and we sit down and she wouldnt talk to me or even look at me. this lasted about 15 minutes. then we stoppd walkin and she kept cryin so i gave her another hug and as i hugged her she starts laughin like crazy. she cant stop laughin for about 5 minutes...and then we started talkin alot and she was ok after that. and the rest of the night was fun but odd. ps. she said she wasnt on her period..what should i do? i cant deal wit all dat emotion?