Update: We just launched a video with Bulgarian relationship vocabulary.
Let’s start with the main love phrase:
I love you!
Обичам те!
Obeecham te!
I like you!
Харесвам те!
Haresvam te!
I really like you.
Наистина те харесвам.
Naeestina te haresvam.
I miss you.
Липсваш ми.
Lipsvash mi.
Kiss me.
Целуни ме.
Tselunee me
May I kiss you?
Мога ли да те целуна?
Moga lee da te tseluna?
You are beautiful (to a woman).
Красива си.
Kraseeva si.
You are handsome (to a man)
Красив си.
Kraseev si.
…and a bit stronger:
Will you marry me (to a woman)?
Ще се омъжиш ли за мен?
Shte se omuhzhish li za men?
Will you marry me (to a man)?
Ще се ожениш ли за мен?
Shte se izhenish li za men?
I hope that list of basic love phrases in Bulgarian was useful to you!