I won't settle if he isn't my soulmate.
Mary was engaged to Joe.
propose to sb
He proposed to me.
meant to be with each other/be perfect for each other
A: Have you heard the big news?
B: What big news?
A: Olivia and Nicholas are engaged. He proposed to her last night at a fancy restaurant.
B: I didn't even know they were dating.
A: After Nicholas' ex-girlfriend cheated on him, they realized that they had a great friendship and that maybe they were meant to be with each other.
B: They really are perfect for each other. I can't think of a better matched couple than them.
A: I heard that they're planning to have an extravagant wedding ceremony in a church with a reception in an expensive restaurant on the lake.
B: Have they asked anyone to be in a wedding party yet?
A: I think Nicholas asked Jack to be his best man and olivia asked Kate to be her maid of honor.
B: It sounds like they've done a lot of planning in a very short time. Have they decided where they're going to go for their honeymoon?
A: I haven't heard where they will go yet, but I bet you they'll go to a beach somewhere. You know how they both love surfing.
B: You know most people find it difficult to find their soulmate, but they've made it seem extremely easy.