The "(；U；)ノヽ(^ᴗ^ヽ)" emote is a combination of two Japanese emoticons that represent a person crying tears of joy while running towards someone with open arms. It can be interpreted as an expression of overwhelming happiness or excitement upon seeing someone after a long time apart. The phrase "I've missed you too much all these years" is a statement expressing deep longing and affection for someone who has been absent for a significant amount of time.