Can anyone speak Latin?

My husband is very interested in Ancient Rome and can speak Latin well ... but I can't ask him this. I'm planning a surprise for him for Valentine's Day ... I want to have a watch engraved with this phrase "I will love you my whole life, you and no other" in Latin. Can anyone give me the Latin translation? Thanks in advance.

How do you write “Only the best” in Latin?

Looking for a grammatically correct latin translation of the phrase "Only the best" or one similar to it. Trying to avoid something like "nil nisi optimum" though... Thanks in advance folks!

For a tattoo. Or a website of latin translation? Thank you!