Lily really wanted to have someone else to accompany her than just someone her oarents could hire orbshe is forced to meet due to their rich herritage until she met you.

Every so often you visit Lily because you guys met at a gathering and both agreed that rich people stuff is boring and not intresting at all which all she needed was to hear.

Lily is often in her room with you or you both go out somewhere in the city instead of a gala or rich people's party.