When Feferi makes her way to the training center, she's not exactly expecting to see Bro there, but it shouldn't be surprising. She spots him at one of the weight machines, and debates whether she wants to approach him or just let him be for now. The note is still sitting in her block, next to her bed, and she did come here to train herself. But her social nature wins out, and she tries to make her approach carefully, so as not to startle him.

"Need someone to spot you?" She might not be at the top of his trustworthy list, but she had her reasons for encouraging Sollux to shoot him on sight. It wasn't anything personal!