Guys, Have I lost any chance with him?

I was interested in Cole bc he'd be friendly and we'd talk. Then he stopped giving me attention. I found out he had a girlfriend for at least a year (odd bc why always looking for me if he had a girlfriend?). Anyway, I decided to ask my current girlfriend out. I didn't know where he worked until last week. My girlfriend and I went to Target. She couldn't find something so she asks the guy for help. I'm next aisle over so when she calls me, i was shocked. But when she called me she said "there you are my little lesbian". I totally froze. I'm bisexual but he probably thinks i don't like guys now. Have I lost my chance with him if he happens to break up with his girlfriend? I'm trying to move on but he's on my mind.

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I'm asking in case he breaks up with his girlfriend: Have Iost my chance with him if he thinks i'm a lesbian?
Guys, Have I lost any chance with him?
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