Fusion Mysteries

I have a pertanyaan about Bismuth and Pearl. Do anda remember how Pearl jumped into Bismuth's arms? Well if they were happy to see each other shouldn't they have fused? The only thing that could not have made this fusion possible was if Bismuth was not happy. Maybe Bismuth was not happy because of what happened between her and Rose Quartz. (If anda watched to the end of the episode where Bismuth came in anda would understand.) I still have 2 lebih questions. Why didn't Bismuth tell the Crystal Gems about what happened? Also, what did Rose Quartz tell the Crystal Gems about Bismuth's disappearance. Anyway I hope these made anda think a little.