Okay, so this is this one thing I love about Zhurrick the most.
They aren't romantic. They are crazy.
Their life styles are so fast, so darting; their minds are so brilliant and they can understand each other without words - if it comes to the thinking, not feeling. Because both of them are not really good at feelings and it's easy to notice: Varrick pushes his own and it takes a lot of time for Zhu Li to talk about hers. So mostly they just live. And they appear to love this fast, dangerous style of living. I can see it especially in Zhu Li's words about her imagining their engagement this way. It wasn't romantic, not night, not restaurant, just fast proposal before fighting a giant killer monster - and this is the closest option to her dreams. Because she knew that, if so, it'll be this way. Something totally crazy and probably before death threat. And that was her daydreaming; she was SO content while saying that this is exactly what she was imagining. She loves it this way and so does Varrick.
Only Zhu Li can keep up to Varrick's dangerous but brilliant way of living; only Varrick can give her all the craziness and imaginativeness that she seems to enjoy so much.
Their honeymoon will probably take place on the moon or something.