Hi everyone! This is my first post here :)
Over a year ago on one pen pal website, I met a girl based in Canada. I can safely say we clicked in our first week of talking to each other after learning that we were both introverts. As the weeks went by, we exchanged increasingly longer and more personal letters before deciding to move to an instant messaging platform where we traded more personal messages, travel pictures, memes, etc., every two days or so. While on this platform, we also met online four times. In the last one, she showed me the gift she had bought for me when she was in another country several weeks prior. Long story short, we became extremely close in a year of being online friends, but I haven't had the courage yet to ask he if she wants to level up our relationship.
Now, here's the (what I think is the) problem. Last Friday, she sent me a message with quirky random question. I replied to it the following day and asked her my own random question. She viewed my reply the next day, but she hasn't replied to it since then. I sent her four more short messages last Sunday, last Tuesday, and earlier today. However, not only has she not responded to any of those new messages, she also hasn't opened or viewed them despite her being online often. In fact, I sent her the last message when I saw that she was online.
I know she can be busy because she's working while finishing her studies, but before, she at least viewed my messages within several hours and replied to them within two days. So, what do you think could be going on? What message is she trying to tell me? Should I send another message or call her when she's online?
TL;DR: I met a girl I've been talking to for over a year, but she has suddenly stopped responding to or even viewing my messages for almost week despite her often being online. What should I do?
Thank you so much in advance for your advice!