As Izuku made it into UA Izuku gets everyone attention everyone hated him because they are in the back ground. With Momo she dated him and see nothing wrong with him getting attention as she believes it's a good thing. Shoto grew affectionate towards momo and believes that she is just being used by him. As he tries to tell her she's being used by him she didn't believe it and walks away believing Izuku loves her Shoto grew more mad that Momo is not seeing the lie he's speaking he tries to make an arranged marriage threw Endeavor his father sees that he is jealous of Izuku and rejected. Soon after everyone hates both Izuku and Momo and attempts to kill them both but was soon stopped by the hero's.
Ship:
Izuku x Momo
Momo did tell Izuku of Shotos attempt and insanity rejects him and he believes her as he didn't know he followed her and his and heard the entire thing between the both of them. All of the hero's sees Izuku accomplishments and knows of both Izuku and Momo dating and a certain person heard of the class plans and take action of what they did if anyone guess who this person is I will make this story and the tremor story tonight I promise you that