I finally realized online friendships are waste of time

I first started making online friends in 2018 through an online game it was so fun to have more than 3 friends I was so happy, they ended quite easily i wasn't much bothered though, i regretted giving them my ig and everything so I wasn't mad to lose them. Then I made friends in other apps tiktok etc they ended the same . Then I stopped making friends I focused on other things after that something big happened that made me really depressed so I went back to my roots. Made new friends on IG, this time it felt different I thought I was the luckiest person to meet her until she started to change I realized that she only cared about this boy she's attached to for a very long time she tried to forget him by making new friends. I wasn't mad I understand her, I get so many headaches trying to find a solution to her problem so she would go back being the sweetest friend I have😶. I told her my idea she said she will just text him and told him how he hurt her(she didn't talk with him for 2 years and was scared to text him) . She sent me the messages and how happy she was to finally talk to him then she send me a screenshot of her telling him she doesn't want to continue talking with him. I was in shock all this time she cried for him, write about him on her diary and she wants to end this with him? I thought this was all she needed all this time, I still supported her this was for her own good right? After cutting him off she stopped talking with me told me she was BUSY. SHE WAS NEVER BUSY WHEN THE TOPIC WAS HIM. Still I was understandable didn't bother her , after 2 months she texted me saying she's sorry and knows what she did is not right. I felt so naive didn't want to forgive her but at the same time I missed her so I forgave her. Months passed it was the same as before she ignored and didn't talk . That made me realize online friendship don't last very long. So I promised myself never to make online friends again :)