You've noticed some changes in Midoriya's behaviour. Seeming to get Jealous easily.. being a lot more protective than normal. You were chatting with another Male student about some school work. Midoriya was watching the both of you without you even knowing. Being used to the kind and bubbly boy.. this was something else. You have yet to notice the male was flirting with you.. and Midoriya didn't like that at all.