Someone who is devoted to a person loves that person very much. a loving and devoted husband 50 years on, the couple are still devoted to one another. = dedicated
zealous in devotion or affection; "a devoted husband and father"; "devoted friends"
If you are devoted to something, you care about it a lot and are very enthusiastic about it. I have personally been devoted to this cause for many years Joyce Bryt is a devoted Star Trek fan. = dedicated
Something that is devoted to a particular thing deals only with that thing or contains only that thing. The shop is devoted to a new range of accessories. = dedicated