am I doing something wrong here?

Hi.i am a grad student and doing my final project.my team mates don’t like to do the paperwork so they push it all the time to me.Even after doing the paperwork’s they nit pick little to minute details and blame or scold me.i did talk against them directly and in harsh manner.They remained silent till few days before presentation and then they told me that they will remove me because I spoke harshly.Also when we neede to put some money into the project they asked their friends and got some materials for free.but they are not accepting it and asked me for money.but I refused.first I refused harshly then I politely refused to give money.Now they are trying to frustrate me in the last moments and and the same time makes me complete the small works.they literally made me cry and made me think that I was wrong.I don’t know.Many say I am innocent and not good with socila skills..still like a naive high schol boy.Am I wrong here ?it would be great to hear others thoughts.

Also it is hard for me to follow on with conversations and talk relevant content.like they talk something and expects me to say something they want to hear but I fail to convey those and speak something else.