Online crushes

It started here on CS. Then we flipped it into emailing each other. After that it then graduated to whatsapp. She had just broken up with her boyfriend &well, I guess we were both feeling lonely communicating felt good. The everyday random chats weren't really deep or anything to be honest, but we had several things in common & I guess that's where I started having feelings for her, while also feeling frustrated cause of the distance between us. She even asked me 1 time if she was being too forward or flirtatious to me because she didn't want to hurt me, I replied by saying no We talked pretty much every day, mostly via voice-notes, & its been almost 3 months since I heard from her. 1st I thought perhaps she had some issues, only to realize via whatsapp which she religiously uses. She updates status/ profile maybe twice a week. Of late about a "great date" she had with a guy. This is all fine, it was to be expected... but it really got to me somehow, especially the fact that she just decided to not text me at all. I don't think I said anything offensive to her either. The fact that she does updates her whatsapp bothers me a little though. First of all I guess, I feel a little used. It just seems like while she was vulnerable I was the most understanding person in the world & all this stuff, & as soon as she meets a guy she can actually see & touch she just plain out stops caring about me, not even as a potential candidate (however absurd it may sound), but also as a friend. It feels like as soon as she's happy, I'm as good as gone. Second, I feel sad. I really thought we had something going (nothing amazing maybe, but some kind of connection) & this wait just feels eternal. A friend actually told me that I should tell her how I feel. It won't change anything he said, but getting it out my chest will make me feel better. I'm also afraid though that once she knows my feelings, she will feel smothered or she'll feel pity for me, & I don't want that. Third, I feel guilty. I really have NO PLACE to be inquiring about her private life, if she dated or not, if she has or hasn't talked to me. I'm just a guy that lives in another country that developed feelings where there wasn't anything, & that wasn't her fault. Maybe she was just looking for a flirt to pass the loneliness, or maybe she was just looking for a friend & I had to let things get out of control & not call it when I saw it coming. & fourth, I feel pathetic. Because maybe I shouldn't be bothered about this AT ALL. It just feels so bad, laughing together, telling each other things that you don't tell anyone, & it all goes down the shitter when one of them finds something more real. So my biggest deal right now is deciding how to acknowledge her when/if she talks to me again (I know "again" is over
dramatic, it just feels bad when you talk everyday & then not hear from the other person period!): do I confront her about it, tell her I felt hurt? do I just act like nothing happened like "oh you were gone? well gee I barely noticed! how's things, any dating going on?" & try to hide my feelings? do I tell her how I feel, tell her that in this condition I'm constantly getting hurt just talking to her & that I need to take things back to the basics ?
I just don't know what to do. This is not her fault & I don't feel like I'm being fair. I don't want to hurt her feelings & I don't want her to feel uncomfortable or pitiful either. Do I
have to choose between hurting her or hurting myself? I guess I don't know if
I should handle this like I would handle it in real life. I guess I just went with it & didn't see it coming.
Thanks in advance for any advice or experience sharing that might help. I ask you because you're probably the only ones that can relate. & another question, is this overly pathetic?