POST 5: she saw Nate cheating on her!!!!

Right after Nate left and didnt accompany her at her moms wedding and on her very big day her birthday she went after him.Later on she went to the lobby because she could not find him to go use the bathroom and when she turned to her left she saw him and Dan's litttle sister that was a 9th grader kissing eachother like if they were enjoying it!!! She felt like the world came crashing down on her and did not knowwhat to do?? i Predict that she will go screaming towrds then and make a whole big scene infront of everybody because she seems like she would do that by her charachter??