Kimi ni Todoke: From Me to You: Soulmate, Vol. 2 — Karuho Shiina

In college, Kurumi thinks she's found her soulmate in Sawako, her rival-turned-best-friend from high school. After Kurumi survives a frightening encounter with a stalker, Sawako's cousin Eiji supports her in just the ways she needs -- he even stays the night at Kurumi's place. When morning comes, Kurumi doesn't want him to leave. Has she gone from fiercely independent to desperately needy?