AIO boyfriend texting his best friends fiancé over work

Hello I 24(f) and bf 23 was texting his bestfriends fiance they're all friends I've never met them. We've been together for 8 months and have pretty busy schedules. She is getting a job at the same company as him. There text seem weird... he said good luck on your interview and she said "thanks🤭" and then he said "fr hope to have you on the team I bet you I will and shit once you get your shift I'll pick up some shifts with you shit will be dope!" And she said "I'd know we'd make a kick ass team" I feel so icky about it:/