Hmmm... I dunno, I actually like romance or stupid couples in novels, like the interactions between Hajime and Yue in arifureta and how they were seen by everyone else, stupid couples capable of making their own lovey dovey singularity which is extremely hard to intrude in can be pretty funny honest
Now, I am a complete fan of "seeing fragments of the future" / "getting information of future events" type stories, the devil survivor games really got me into it, but the mc suddenly getting a prophetic dream of about 4 or so of the characters that were introduced earlier which were really likeable falling into bad ends, just to no remember a damn thing the next day... I still wonder what in earth was the author thinking at that time... but no, that threw me off so bad...
Also characters acting completely out of their personas, doing absurdly stupid things which I believe they would normally know not to even with just the knowledge they get from their own perspective just to create more conflict in the story...