She has provided the company with many years of 'loyal' service.
She has remained/stayed 'loyal to' her old friends.
has served 'loyally' for many years
(..) We have what you might call a... difficult relationship. - No. - But I haven't mentioned a figure. - Don't bother. - You're very loyal very quickly. No, I'm not, I'm just not interested. "Trust issues", it says here. What's that? Could it be that you've decided to trust (..)2010 TvShow: Sherlock Title: A Study in Pink Season: 1 Episode 1