What to do if ur online friend is toxic

Um so I met this person on insta like a little over a year ago and we became rlly good friends and stuff and then uhh they kept venting to me and stuff(which I don't mind) but then something personal happened in my life and I haven't been in the mood to talk to my moots on insta like that and I think they r mad... Idk if they r mad but like they post stories on how they have attachment issues and shit✌️lowkey they infantilse themselves and the last time they said something weird I said something and they got sad. Maybe I'm just overthinking things but Im not sure??  they mention having attachment issues and maybe that's y they r so clingy to me but it's a little weird. Guys idk what to do I like talking to them but I also don't want to go on my phone all the time to talk to them. And I can't open insta without getting messages from them:((