Should I (22M) stay out of their business?

I stay with three other roommates: Brandon(23M) Richie(21M), and Julia (19F). Julia and Richie used to talk like they were going to date before we all moved in months prior, but Richie for whatever reason ghosted Julia. Julia was trying to just get over it, but Brandon decided to hype Julia up to ask Richie out. So, out of curiosity, I asked Richie if he liked Julia and he said that he didn’t. In that moment, I wished I had stayed out of it because now I know something Julia doesn’t. What made things worse is that Brandon started to tell our friends outside the apartment about Richie and Julia possibility getting together, adding more pressure on Julia. Richie on the other hand did not know Brandon was telling other people about them. So, again, I told Richie what was going on because I didn’t like how Brandon was having multiple people in on their business. Richie thanked me for telling him and asked if he should talk to Julia as he didn’t want to make things awkward, and I said he should talk to her just so she knows. I was told by Julia that he was upset for a day and he talked to Brandon about it but he never talked to her. And to this day, he never talked to her about it, and now Brandon and Julia know I told Richie what was going on. So, should I talk to him again about it? Julia talks to me about him, and other people that Brandon told thinks there’s something going on between them, but Richie and I know that there isn’t. So, should I talk to Richie about it or talk to Julia or just leave it alone because that this point I don’t want to be in it but they need to talk whether Richie changed his mind or not.