Yes, you need help desperately

Alex : "Hi... Samantha? let me buy you a round I have something I need to talk to you about."

Samantha looks at Abby, possibly inquiring with her if you're about to be really creepy. Given how she knows you it's impossible to fault her for this caution. Abby shoots back a look that says you seem cool.

Samantha : "Sure, any friend of Abby's is a friend of mine. I'll join you on that margarita special."

Abby gets to work on the drink, moving much further away to make it than she did for yours you interpret this as giving you some privacy. In a rushed whisper you say to Samantha.

Alex : "Listen, I took the test, the... SFC test... I've got... My score was... Low... There's been a mistake"

Samantha's eyes have gone wide as she connects the many more dots you share than she had expected.

Abby returns with her drink and she takes down half of it in one sip.

Sammy : "You can call me Sammy"

It seems like she has taken this absurd situation in stride and you're grateful that one other person on earth knows what you're going through.