Hey y'all I (24M) have been dating my girlfriend (26F) for about 3 years now, everything is totally great about our relationship, we never get into fights and we love each other a lot, she is someone who I feel like I could spend the rest of my life with, which is something I had never even considered possible for me before.

When we were first dating, before we became official she asked me how I felt about a polyamorous relationship, which I had no personal experience in but I was not opposed to. She also informed me that this isn't something that she didn't want to do in the moment but informed me that it would be likely that she would want to later in our relationship.

Our arrangement is that she can(and only wants to) see other girls but not other guys and we never really explicitly discussed my parameters. This isn't something that she had ever tried to act on until maybe 2 months ago. She's been on a few dates since then and I'm feeling totally fine about it, not jealous or anything, however seeing her explore and go on dates with new people is leaving me thinking about what it would be like if I was doing the same. In the past it seems like she's been back and forth between what she thinks about me being involved with someone else, sometimes she tells me that she thinks it'd be hot and other times tells me that she wouldn't want to see it at all.

Of course it's not a deal breaker for me if she's totally against me seeing anyone else but I'm just wondering how to approach this conversation

Thanks in advance!