Dealing with attention seeking

Hi, Thanks for reading my post, just wanted to try and get some advise on my current relationship. To cut a long story short I have been in a relationship now for about 5 months. Things have on the whole been very positive, but there has been one aspect of our relationship that has caused us upset and continues to. Basically my girlfriend is a bit of an attention seeker and flirt, to be fair she freely admits to this. The majority of her friends are guys, one is her best friend and he seems like a great guy and I don't have a problem with this as one of my best friends is a girl and we're totally platonic. Some of the others though have been inappropriate and she thinks nothing of giving her number out to guys at work etc. We have been out with friends a few times and she loves to dance, however she does tend to get a bit too friendly with the guys on the dance floor which when I'm there is a little embarrassing for me, but it's just the way she is and this is where the crux of the issue is. There have been many other little things that I don't want to bore you with but suffice to say it's starting to create an issue as I have no right to ask her to change who she is and I do not want to stop her doing things that clearly make her happy, either aggressively or passive aggressively, but these issues keep coming up and I'm starting to wonder whether she's the girl for me as it's clearly me that has to change and I'm not sure I can or how to. I've never been a jealous or insecure person in previous relationships, but she does seem to make me insecure and I've confided in her about this and each time she apologises, says she needs to grow up etc, which aren't always necessary as she hasn't done anything wrong per say. One other thing to note is there is quite a large age gap between us as I'm 39 and she's 27 (With 3 children) and so some of the differences between us like social media use etc are to be expected. I love this girl and her me, and I'm at a cross roads, should I change the way I deal with how she is and accept she is totally into me alone and is simply a social butterfly? or accept that this could very well always be an issue and bow out gracefully before too much is invested? Thanks for your time

I would definitely leave her alone. Have you called her out on what she does? If she doesn't care about how she is making you feel she probably has some major issues she needs to deal with. There are plenty of good girls out there.