I was exactly the same, there are some where the answer is definitely neither! But then some I just couldn't pick between, and it so depends on how the author deals with the trope.

I guess if this is meant to not be fandom specific maybe accidental marriage is a more popular thing in other fandoms? but yes I definitely prefer accidental bonding!

The more you think about it the more confusing that one gets haha, my first thought was length, but then maybe it is would I prefer it to be posted all at once or over multiple chapters and then I get very confused haha.

I'm looking forward to seeing yours!