You’re right to question your fiance’s behavior. It’s unusual for a man to get engaged and not want his family to meet the woman he’s going to marry. In fact, it’s a flashing yellow light. 😳
My suggestion is to tell him you’d like to plan a family dinner for the two families to meet. Regardless of where you all live, try to set up a festive meeting, and see how he reacts and what you learn from meeting his folks and extended relatives. If he refuses to be part of this, or won’t let you meet his family, then I think you have reason to consider this engagement a mistake. However, if he’s not a planner, and is looking for a wife to do that sort of thing, you’ll learn something about how he handles family dynamics. So see if he’s up for a family dinner or weekend.
As for this new friend of his who’s a woman, rather than go through his phone message history, why don’t you ask him about her? Give him an opportunity to explain before jumping to conclusions.
In other words, [i]get more information[/i] before making any type of decision.
It would help me to know a little more about you two, like your ages, and if he’s ever been married before. Do you have children? How much later after meeting him did you get engaged, and when are you planning to marry?