I've met a man a few months ago who had been divorced for about 4 months from his second wife...?

His first wife left after 25 years because he wouldn't go out drinking with her any more because of his job....she was a biker and he had been also....she just up and left one day leaving everything behind..no kids by the way.....supposedly she had met someone on the internet....well, then he meets someone on the internet and marries her within 4 months..supposedly she had mental problems and after 4 years of off and on, they get divorced. I meet this guy and after about 2 weeks he is madly in love with me.....he has been very nice, but doesn't like me to change plans or he will throw a hissy fit....I'm not sure about this.....are these red flags...