Together, they would likely try to make Renesmee understand that their relationship is special and that her presence is also special. They might give her a hug or some form of affectionate gesture to show that they are a family unit and that her walking in is just a normal part of family life, even if it was an intrusion on their private time.
Bella might be extremely embarrassed. She would probably blush and stutter, trying to come up with an explanation for their situation. Since she loves her father and doesn't want to disappoint him, she'd be very flustered.
One possibility is that Renesmee is simply curious. She might ask them what they are doing in a very innocent way. For example, if they are having a private moment, she could break the mood but also add a touch of humor to the situation as they quickly adjust to her presence.
Edward would probably be very confused at first. He would try to understand why Bella would leave him for Rosalie. He might start to analyze all their past interactions, looking for signs that he missed. Eventually, he could become angry, not at Bella directly, but at the situation. He might also feel a sense of betrayal, not just from Bella but also from Rosalie in a way, since Rosalie is 'taking' Bella away from him.
Bella would be heartbroken. She has put so much trust in Edward, and this act of cheating would make her question everything. She might become angry and lash out at both Edward and Tanya. She could also become very sad and isolate herself from others.
One great fanfiction is 'The Family We Create'. It beautifully explores the relationships between Edward, Bella, and Renesmee in a new and exciting way. The author delves deep into how Renesmee grows up and how her relationship with her parents evolves over time. It's a heartwarming read.
I really like 'A New Beginning for the Cullens'. In this fanfic, it shows how Bella, Edward, and Renesmee face new challenges together. It has some really interesting plot twists that keep you hooked. The author does a great job of portraying the characters' emotions, especially Renesmee as she tries to understand her place in the vampire - human - hybrid world.
Well, there's a fanfiction called 'The Adventures of Renesmee'. In this story, Renesmee has some really exciting adventures with her parents Bella and Edward by her side. It shows how their family bond helps them through various challenges. Also, 'Renesmee's Destiny' is quite interesting as it delves into what the future might hold for Renesmee in a very creative way.
He could be devastated. Edward is deeply in love with Bella, so he might go into a state of depression. He may isolate himself from his vampire family and friends, constantly replaying in his mind what went wrong in their relationship.
Edward might be initially shocked. He has always seen Bella as his own and this sudden change could be hard for him to accept. He could become withdrawn and moody, similar to how he was before Bella entered his life.
Edward might be initially shocked and heartbroken. He has been in love with Bella for a long time, so her leaving for Jasper would be a huge blow. He could become withdrawn and moody, brooding over what went wrong.