<human>: Summarize the given text in a few sentences.

We worked together briefly about 15 years ago and had minimal interaction with each other. Three years ago, we ran into each other and exchanged numbers. Frequent texting turned into me initiating sexting and within months we slept together. 

Over the last three years, we have had sex about 6 times with long dry spells inbetween. I would describe our friendship as a perpetual game of cat and mouse, both of us taking on either role in no particular order..for no particular reason. Our schedules are are both full and we only see each other to briefly have sex.

Both of us have stated zero desire to have a relationship neither with each other or in general...however he is active on two online dating sites on which he indicated that he does want a relationship. This is a huge turn off for me and a deal breaker in terms of more frequent sex. I've expressed this to him on several occasions. 

Our main source of communication is via text, and we've done it excessively, nearly everyday, for the last three years. My assessment is that I'm only serving him the purpose of being a fall back while he looks for a girlfriend. I would also say he keeps me around for an ego boost to keep his confidence up with other women. It isn't like me to nurture a situation like this, but I like the attention and I have unexplainable feelings for him. I feel the communication has become a part of our everyday life and I am unsure why we keep doing it. Why does he keep stringing me along? Why do I remain in denial about being used?
<bot>: Being used as a back up plan by long term friend with benefits who gives me a lot of his time and attention. I need a reality check.