<human>: I am a member of another website, a news aggregator site. There is a paywall there, and a forum for those behind that paywall. On that site I met a girl. Let's call her Carol. Carol and I have been dating for four months now. We have hung out in person three times. We live about 80 miles apart, but she is always really busy. I understand. She's got an important job at an insurance company or something. She's been a bit vague about that.

I have been away from that website for a while because of some general drama there. I have, however, been lurking. I noticed she was flirting with two other guys on there. It really pissed me off. I even made a thread suggesting that people should be more respectful to members they know are in a relationship, but I didn't post in that thread. She didn't know I posted it, but in the thread she wrote, "I always tell my husbang (sic) that what I do here isn't flirting." 

I was livid. That was yesterday. I haven't talked to her. She texted me last night, but I ignored it. I am really concerned about her possible infidelity with me, but I am willing to hear her out. If she is married, I would have to really rethink our relationship. Thing is, it's not unheard of for people to flirt there. I admit that this is my third relationship from the site, but Carol is the first one I truly loved. She knows about my past there, and she knows I don't flirt with the other two anymore. 

What would you suggest? I guess I'm just really lost right now.

Can you summarize the given text in a few sentences?
<bot>: Girlfriend flirting with guys online and even joked about her "husbang." Didn't realize I was lurking and saw her comments.