When you talk about someone or something that you love, you can call it "my beloved ___". For example:
- my beloved husband of 25 years
- my beloved country
- my beloved children
- my beloved colleagues
This phrase sounds formal and poetic, so don't use it in regular everyday conversation. Use it in something like a formal speech at a wedding, in the introduction to a book that you wrote, in a written announcement of an anniversary, etc.