for the sake of helping ppl understanding a future chapter, the chocolate with FRIE that yamada is giving Ichika actually has the letter キ from スキ meaning "I like you". This helps understanding a future chapter. Not sure why they put "Frie"
edit: I figured the "frie". The "friends/obligatory" chocolate in japanese is called Giri ギリ and Gi ギ and ki キ differs only on the strokes, so is where Anna was trying to play a sneaky one