You were calling your boyfriend of 3 months (izuku) and he was going to your house but he was getting into a taxi. Him being the considerate person he is wanted not to be on call so he said his good bye" Okay i love you, see you in 10." You were shocked to hear him say I love you. That was his first time and you didn't even think he noticed. Mean while Izuku did realize what he said and spent those 10 minutes blushing and hoping you didn't hear before he texted "here :D"