Yep. OPs post screams insecurity. Though I see where she’s coming from, she needs to remember that she’s been dating this guy for almost 7 years!

OP, you know your bf better than any work acquaintance. Don’t let these thoughts get the best of you and don’t reduce your SO down to these nitty gritty “why did he say this word instead of this word” texts. Your SO hasn’t given you a reason to distrust him so have trust in your relationship.

If his work relationships become more inappropriate just talk to him. But from what you’ve said it’s all platonic right now. It wouldn’t be fair for you to interject your insecurities with the people he works with