Why did she do this to me? I know, I am a succor

I met a girl online from the Philippines as I was going through a divorce here in Denver. I thought someone overseas would be great to get away and build a future with. I thought, wow, we are both separated and we are in the same boat. She had 2 sons and separated for 6 years. Well I fell in love with her. A couple months later I found out there is no divorce in the Philippines. So I go meet her in person for a week. But I could not visit her home because of her ex family. Then 3 months later I found out she was lying to me. She has 4 sons and only separated 1 year. I found out through pictures in her family's facebook page. Then she admitted to me this. I accepted her apology. A month ago I started working 2 and 3 jobs to pay for her annulment. But i was getting bad vibes from her. I found out through a complete stranger to me who knows my ex girlfriend that she was on a dating site. I asked her and she said it was an old site and she was checking messages from a long time ago. I made a profile on the site to check on her. To my amazement she was on 2 times this past month. Yeah I gave this "poor" girl monthly support for her and her sons. Yes I bought this "poor" girl a phone. Yes I am stupid. I just need to vent. I learned. I had never looked overseas before in social media. I guess I got over my divorce haha. But my ex wife and I are still good friends, just not any love. Thanks yall