"Yeah one friend can be bery moody when it comes to talking and is perfectly okay with ignoring messages for days to weeks or even over a month at a time. That is another reason i get panicky. Makes me wonder if she has depression or something. She will go in phases of wanting to hang out a lot to not giving a crap."

Oh god, that back and forth would send my anxiety into overdrive. I wouldn't be able to be friends with someone like that - I would either drive her insane with me pestering her for replies and she would remove me or I'd remove her because I felt like she hated me. She probably does have some issues if she lets it go that long between replies and goes back and forth between being eager and not caring. Definitely not normal behavior.