I live in Mexico, and am going to give a different perspective on this.
He sounds to me much like a normal, ordinary everyday Mexican man. I like the Mexicans, but if you want marital fidelity, Mexican men are not the source. I know many Mexican women who marry North American men, and stay married their entire lives to them. I do not know of ONE Mexican man who married a North American woman and was married to her for ten years, period. Mexico is very "male friendly" and not much happens to most unfaithful men. A lot of men aren't even requested to pay child support for their out-of-wedlock children, though technically the law has such provisions.
They can be very charming. They teach each other all the tricks, but even more they practice them. In the US, we men can't practice seductive techniques, because of sex harassment laws. Not just at work, but on the street. So, a North American woman who encounters a highly trained and gifted Mexican seducer is like the deer when the pioneers first introduced firearms. The deer allegedly stood there, all trusting and innocent, as the hunter aimed and fired. They absolutely don't know what they are facing, and believe those sweet words of love.
He wanted his papers. He got them. Let it go. You messed up, he told you what you wanted to hear, you believed him, and he is gone. Do not let revenge, no matter how well deserved it is, drag you down to his level. Admit your mistake, warn other women of Mexican men, and get on with your life as you desire.
Now, as to the other woman. Many of the Mexican women can be very good wives, but they are not all the same. Some Mexican women can also be very aggressive, which this woman sounds like.
I am 69 years old, and have been faithful to my Mexican wife of 36 years, for all 36 years. I never once seriously considered adultery until I was, um, 68 years old.
My wife goes back and forth to the States. Over a year ago, a 21 year old married woman, need I say very attractive at that, started "flirting" with me. I'd say rather extreme seductive behavior to put it bluntly. I am innocent/stupid enough it took me a while to realize what she was doing.
An example, but only an example, is the minute I went on the property to see her in-laws, she would start to breast-feed her baby. From my own observations of my mother many years ago, I could tell the baby wasn't hungry, and of course she had to know that as well. (Moms aren't that dumb.) But, this gave her an excuse to, ahem. And, they were a pleasant sight, I gotta' say. She knew what she was doing. The amazing thing was she'd do this stuff in front of her mother-in-law...
As I said this is only an example. Once, she giggled non-stop the whole ten minutes I was there, and nothing funny was happening. Lots more, and yes, I am sure. I wasn't at first, but a dear friend, a woman in her 50's, who is more like a sister, assured me I was not wrong in my interpretation.
Well, I eventually learned I am not a saint. I thought I was, heh, heh.
After several months of this, I actually started thinking it was a good idea.
If it were not for a lifetime of very strong self discipline, I cannot say I would have evaded her desires. (And, let me add, as immodest as it might be, I am not an ugly old man even if I am an old man. Plus I adore her daughters.)
I haven't failed (yet) and I finally think she has given up. But, I can tell you, an aggressive Mexican woman, especially a very attractive one, can be very hard to resist. I suspect this man made no effort to resist her.
