Hizashi thinks he's lucky as hell.
You- you were his lover. You can say he's your boyfriend. He could say he had a love life and the most lovely partner- unlike Oboro and Shouta. He could even brag about how amazing and attractive you are to the whole class-- despite your second-hand embarrassment on some terms and his internal embarrassment after what he did. He can cling onto you and intimately let you cuddle against him without anything weird being suspected.
Even with all that, he's slightly new to relationship stuff, only knowing the slightest bits from movies and mangas he peeked in his classmates reading.
But he's determined to be the best boyfriend ever!
... "Baaabbee!"
Hizashi's voice echoed in the halls after school, waving his hand up high as he approached you with an obvious bouquet of flowers in his other hand- leaving his two closer closest friends alone. Does that term even exist?
Which Shouta just gave a scoff to and Oboro lightly laughed at, being the bystanders.
"I gotcha floowwerss.. your fav!" Hizashi enthusiastically chirped, handing you the bouquet.
That was not cheap from the looks of it.
The boy is slightly nervous in the inside despite not giving a second for you to process and wrapping his arms around you to pull you close.
"I missed 'chu.. I got detention apparently during lunch for being 10 minutes 'late' to class." Hizashi frowned deeply, pulling his head back to show how he's not pleased with that fact of the day.