I was dating this man for 5 plus years. We traveled a lot together he would take me shopping frequently, pay my rent everything a man would and could do for a woman he did. As if we were married. At the same time we fought a lot but seem to get back together all the time we had hot passion all the time. My question is how can he investe all that money and time and just get up and leave from one day to the next. Does it have anything to do with his zodiac sign.

If he keeps coming back, why worry. I don't think his horoscope sign has anything to do with his duplicity, but its okay to believe if you want. I guess he feels he is a free spirit with a lot of money to throw around. My advice is, enjoy the time you have with him and don't sweat the little stuff. It isn't worth it in the long run and you may lose him permanently.

But then again, where does he get his money from... is the reason he ducks out once in a while?

You mention all the things that he does for you, what do you do for him, besides fight??

I know where he get's his money it's all legitimate. Works for the government.
As far as what I do for him everything. Cook ,clean up after him. Clothing, when sick I take time out. Watch his son form another woman. I give him facials, I send him for massages, hairs treatment centers even waxing centers. He bailed out on me already. He's gone. That's why I'm hurting. Why did he not commit. He is a moody person changes his mind constantly.
I'm hurting

I can understand the hurt after a breakup, and sometimes two people don't always click, or one will change and want something different. You just have to accept that its over and move on with your life. It takes time but you will find yor happiness and have a life you enjoy without him.

Don't feel hurt. If zodiac is your concern... visit this and know him(if that is the only way you want to know him): 12-houses (http://www.rameshaneja.com/12houses.html)