Yomance

A "friendship" with someone who calls you a good friend, only to pop in and out once in a while and say nothing but a brief "yo", "hey", and only talks with you if you talk with them first. Most likely this person has had at one time a special meaning to you.

Ashita and I were such good "friends" it turned into a yomance.

Yomance is another word for a friend who no longer contributes to the relationship and becomes a casual acquaintance.