How can I help my friend out of this unhealthy relationship?

Only your friend can make the break from this man. She may find his unpredictability alluring and see him as her knight in shining armour who will whisk her off to some romantic place. she might think that's romantic, and no matter how you see it she will see the romantic part of it. My advice is stop trying to stop it but encourage the relationship to go further, talk about your friend marrying this man. I my opinion of this man is right, if your friend starts talking about marriage to this man he will run to the hills. He doesn't sound like he's the committing type and if he thinks your friend is looking for him to marry her and he only wants fun and games with no commitment then he won't call your friend and expect her to drop everything to come and see him. If this happens, your friend is going to need a good friend to get over another failed relationship.

It can be difficult for a friend, but you must learn to mind your own business- some of this stuff you write strikes me as controlling, and jealous. This woman must make her own mistakes- and she won't listen to you anyway- they never do!

It's her choice. I think you are jealous and opinionated about a relationship that isn't yours. It doesn't sound like your friend is not enjoying it...

nothing at all you can do she seems bent on living this way. she will be back as soon as he tires of her.

Not a lot you can do really. She enjoys the thrills of jetting off etc etc to someone with loads of cash. However, a long term relationship is unlikely as he is simply buying her. When someone else comes along, she will come to her senses. Then she will need a listening ear.

There is nothing you can do. She will have to come to that conclusion.

I hate apathy. So many, "nothing you can do" answers is really pathetic. When you care, there is always something you can do. Friends just nod and smile and are "Yes Men." Good friends will have debates. Best friends will give hard advice that someone doesn't want to hear. You are on the right track. If her behavior of dropping everything is destructive, then you need to give the hard advice that she needs to break it off and point out how her behavior is destructive. However, you need good communication before this. Not so much between you and her, but between her and herself. She needs to find out what she wants from this guy. Maybe she never wants to be committed again. There are many people that are okay with a physical only relationship. If that relationship comes with getting whisked away to a foreign land on a millionaire's dime, so much the better... if that is what she truly wants. And there is absolutely nothing wrong with wanting to have simple fun like this as long as it isn't ruining her life. But if she does want a long term relationship, then Paul is right. She should be honest with herself enough to admit and realize what she wants. Does she feel like a high priced whore? Is she protecting herself from STD's with someone who is obviously a Playboy? Then she needs to communicate that with her new beau. See where he stands on long term commitment. Maybe he'll break it off. Maybe he'll settle down. But either way, pushing the commitment part will get her an answer as to the long term possibilities that are available to her with this guy. Most likely it will end and you'll need to show her how this guy didn't match with what she needed in the end. Remember it is not time wasted if you enjoyed what you were doing. But it is time wasted if she wants a family more than fun. Communicate more. Help her make these realizations. Then support her no matter what she decides.