Forum:Sims Freeplay - make friends

Hello! I recently got a Kindle Fire and put Sims Freeplay on it. I am at the task in level 6 - Make Two Sims Friends. The only thing is, I've been playing it a lot and all my Sims are already good friends with each other, and I can't completely the task. How do I get round this? Stop them interacting so they forget about each other? Or try and get two to fall out and then make them friends again?

Thanks.