What you described in your og comment is NOT bl cuz bl IS STRICTLY ROMANTIC,it involves 2 men in a ROMANTIC relationship (could be sexual or not)
but the bromance is for platonic or unidentified relationships like our characters here
Shounen ai and yaoi tags are for romantic gay relationships (one is non sexual and one is sexual)
You thinking the "love"in boys love = all types of loves is just wrong, it doesn’t work like that unfortunately,it’s explicitly romantic
Also bromance isn’t bl,it’s like claiming if the men in straight manhwas love each other then it’s yaoi (obviously?) but they don’t so that’s what distinguish genres from each other
I’m correcting your confusion ,thats all

This IS BL, it's boys love. They love each other, not all love is romantic, there's something called platonic. This doesn't need yaoi tag or shounen-ai, it's ok