Struggling with moving on

I was going through a bit of a rough breakup, and met my friend M online about a year and a half ago. We started chatting, and we pretty much sent at least one message to each other nearly every single day. It literally became part of my daily routine to at least send a good morning and a good night message, and they reciprocated.

Over that year and a half, they became instrumental to my life. They were the first person to ever make me feel truly loved, they'd ask how my day was and compliment me without request and just overall be a good hype up friend, you know?

About two weeks ago though, we sent our good nights and the next morning...radio silence. They are quite busy working full time as a content creator while also going to school full time in a pretty rigorous program, so I don't fault them for not being able to respond to me as quickly as I can to them.

According to their other friends, she sometimes ghosts them too and that's just something that anyone who wants to be their friend has to understand. I totally get it, since sometimes I just don't have the spoons to chat with anyone.

But then one day went by, and another day, and another and I hadn't heard from them at all. I finally got a message from them five days later after I wished them good luck on a marathon they were participating in, and then since then...it's as if I've been ghosted.

They're active on social media (since it's their job) but part of me just wonders if the relationship we had built up through all the messaging even mattered if it could all just, go away, or if I'm overreacting and I should give them more time.

It's been a difficult two weeks trying to get used to them not being part of my daily routine, or someone that I can go to when I'm not feeling the greatest. I just wish I could ask them what was going on, since whatever it is they still have my full support!