I love this show but I think the way Olivia spoke to Taylor on the reunion was ugly. The words and names she called Taylor was what was really gross, especially when she knew Taylor also had just lost her brother. At least Taylor did try to be there for Olivia during the loss of Olivia's brother. I think it's safe to say why Olivia is mad was because she was jealous that Austin was interested in someone besides her. That's why she is fine with having Austin around and hanging out with him and not blaming him the way she blames Taylor. Austin wouldn't even commit to a relationship with Olivia so it wasn't like Austin and Olivia were dating even, and last I checked several on the show have dated someone else's ex and no one acted like Olivia has over this.
Just the foul mouth she has during the reunion made me want to turn it off and not watch. No matter what someone does you don't call them the worst name you can call another woman. That was gross!