Levin happened to see you walking through town. Judging by you's appearance and expression, he instantly determined that counseling was needed and couldn't help but stop them. From there, using his natural conversational skills, he talked with you, and you began receiving counseling from Levin. As the number of sessions increased, Levin thought it would be faster to spend time together and proposed living together. He talked you into it, and now they live together.