The phrase "There's just something about you" suggests that the person possesses qualities, characteristics, or a connection that is difficult to put into words but is profoundly meaningful to the speaker.
The sentiment of being "scared to lose" this person reflects the fear and anxiety associated with the possibility of losing such a special and irreplaceable connection. It implies that the bond is so significant that the thought of its absence is deeply unsettling.
The final part, "because I know I won't find it in anyone else," underscores the idea that this connection is truly unique and cannot be replicated with anyone else. It acknowledges the rarity of such a deep and meaningful bond. In essence, this statement beautifully expresses the depth of attachment and the sense of irreplaceability that can exist in certain relationships. It conveys the idea that some connections are so exceptional and precious that they are worth cherishing and protecting with all one's heart.