<human>: So I'll start by saying I've known this individual for about four years. He was my long term ex-boyfriend's close friend during the duration of our relationship(3.5 years). Since I split with my ex-boyfriend a year ago I have maintained contact with his once close friend through text. Overtime our conversation became more intimate regarding each other's life situations. In turn he told me about how empty and unhappy he is with his current relationship of less than a year. To which I provided the best advice I could for him. Eventually I realized while talking to him that I had developed feelings for him. One day after a couple failed attempts to see him in person I decided to be blunt with him about how I felt. He reciprocated my feelings and due to his situation we decided to stay friends for now and see where things go. Despite what he's told me he has made an attempt to hookup with me on a night when his girlfriend was out of town. To which I told him I wouldn't just sleep with him while he's in a relationship with another girl. I get this lingering feeling that I'm being used as a backup to his current girlfriend versus someone he'd rather be with instead.  So my question to everyone is am I being pulled around emotionally while he gets the benefits of both worlds?

Provide a brief overview of the text.
<bot>: Admitted feelings to a friend that is in an unsatisfying relationship and decided to be "friends for now". Keep having a lingering feeling that I'm being used as a backup girl versus being someone that is worth being with at all.