There is a chance (hur dur) that they slept together. She was talking about how she had a crush on Soda, Soda saw her clip where she was praising him, he went to Miz's house after that, Miz was talking about how they were on his couch watching movies all night, and now she's staying at Soda's house more than Miz's.

I know all of this because she specifically talked about it on Miz's stream or these were events that happened on Miz's stream. I feel like a creeper for knowing this much info about them currently, but you asked.

Now, with all of that said, who gives a shit? Honestly? Soda is out of your league and will never touch your pipi. Don't be jealous of Alinity maybe touching his wiwi.