It's okay to overthink and it's normal everyone do that! But just a reminder if u feel that she doesn't need u anymore, dont feel that way.. Maybe she still do and if u have confident u could tell her how ur feelings, let it out ur feelings dont bottle it, i hope u guys get along like u guys used to be, if u ever feel like you need someone/friends im here for u! 
#relationship vent
north wigeon
My advice that u should let it go and try to find someone who fits u also or if u feel confident u could tell ur feelings in front of her 