"Hello my love, I hope you have a beautiful night. I love you, muah."
Here's a breakdown:
* Hola mi amor: "Hello my love" (in Spanish)
* que t pase una linda noche: "I hope you have a beautiful night" (in Spanish)
* Ilove you: "I love you" (in English)
* muaa: A sound effect representing a kiss (like "mwah").
This phrase is a romantic expression of affection, likely sent to someone the speaker is in love with.