According to the articles I've seen, the two friends waiting for hours outside her place on Saturday, were TR and DJ:
"After we hadn't heard anything from her on Saturday, we were worried so Tanya and I went to their apartment at about 12:30 [noon] ," Desiree said "They had a ring doorbell, but nobody answered. "We sat outside and waited for hours."
Friends of influencer Alexis Sharkey say they have vital information for cops
The friend that AS is said to have texted her boyfriend at 11pm FRIDAY night, was CT
"Sharkey’s close friend Chelsea Turnbow told FOX 26 about the moment she learned something was wrong Friday night. “Tom, which is her husband, texted my boyfriend,” said Turnbow. “11 p.m. is when my boyfriend John called Tom and said, What’s going on, Tom? And he said, 'Me and Lex got into an argument, and she left. I don’t know where she went. Can you just please let me know if you know anything.'”
Surveillance video could give clues on how influencer’s body ended up in Houston ditch
I'm speculating that since all these friends say they all stay in touch constantly, the two sitting outside her apartment for hours on Saturday DID know she went missing the previous night (since one of her other friends clearly knew), but didn't actually worry about it until they still couldn't reach her the following day.
ETA: Scratch that - if all these same friends were in the same group chat as has been implied, it seems kind of strange that no one told them AS's hubby texted the night before saying she was gone. In her interview linked above, the one friend seems to have zero reason to be worried by Saturday when she texted the chat and asked who was coming over, and AS wasn't the first to reply.
Something fishy going on here.
jmo