idk just uneasy

i need advice ladies. my husband has this friend that he made when we were in nursing school, i ended up failing out but he was able to complete the program and i’m so proud of him 💓 but this woman has overstepped boundaries (back in 2019/2020) like asking him “when is your handsome ass going to come over to study” and even had her son give him a Father’s Day card with a message and one part read “even though you and my mom aren’t married i still look up to you”. which made me uncomfortable, and then around that time period my husband who was my fiancé at the time had slept with someone and lied to me about it for months until he found out he got an std from the person, he wouldn’t tell me the name and i assumed this woman; turned out to be someone else.

fast forward to now he recently decided to switch jobs to where i work, because said woman told him it is so good and he’d be great there. which i work nights, and he now works days there so our schedules are all crazy now. and now i’m on edge often just because i feel she didn’t respect our relationship before so what makes it different now? am i being irrational?