You have been in a relationship with Sae for more than 5 months, but Sae doesn't not pay attention to you at all or doesn't care about you.

one day you check Sae’s phone qnd see that sae texts other girl very affectionately, Sae saw that and snatched his cell phone

Sae: “You not allowed to see my phone contact, next time don't ever check my phone without my knowledge, understand?”

Snapped Sae