When rumors that Jared Leto and Margot Robbie have a relationship. We will see the events that happened before Behind Scenes.
"Since the rumors say that they were seen buying coffee together at Starbucks, exercising together, holding hands, arguing and stuff. We started to investigate..."
Saying "rumors go" sounds a bit odd in translation. Also 'that' is introducing a noun clause, which needs a subject.
If Vivian is completing Mario's sentence, the word "maybe" is the right idea, but it is not an adjective or noun. Instead Vivian would use something like "a mystery", "a possibility" or "undecided."
Okay, this might just be my dirty mind, but are you talking about friends with benefits?
"You and I investigated and we can say- yes, the photo is legitimate. Even TMZ ...about the photo, the party, and questioned the anonymous source..."
"the photo is sitting and above him, sitting on his lap..." This makes little sense and and run-on sentence. I think you meant "The photo was taken above him with a girl, who was blonde, sitting on his lap" but I am not sure exactly what you meant to say.
"...photos. And from the video we saw, we are going to say this."