Need opinion

Actually I have lot of friends. I don't call and they also do the same. We don't talk to each other. It's been one month..there no text messages...i feel lonely at some point and try to talk with them but they don't even check my msg and calls..but when I put status about loneliness and alone.. i don't have anyone to share about this, nobody to talk' like that they started to argue about that...it even make the situation worse... I'm getting anxious 😩 after that i have meet some friends they approch me... they asked me to hangout...we went to someplaces.. it's been relaxing I'm little Happy...but the others are like you changed a lot ..you got new friends you don't even care about us...🙃 What the hell...those friends don't even calls me or talk to me..but when they need me for assignment, seminar preparation,exam study...they do call me and ask me to do their works ... At the beginning i did for them.. i helped them...but they still like that one time i don't feel well i have heavy fever and headache...that time also they ask me to help.. i did for once and it's even to hard for me...couse i have to do my works also others to... it's frustrated ☠️ and i realize that they don't even care about me..so why do I need to help them... that's not my work anymore...and they start to say like you are too mean...your selfish...you have changed... What the hell..🤦🏻‍♀️ they even complain about me to other friends..who are now studying and working in another place.... what's the heck they are thinking about me....Tell me honestly did i do anything wrong? I want to know what is wrong?