You are very welcome. 😌 I read that your ex " promised" to take care of his friends family for him. That being said I commend him for his efforts to do so and you for being supportive of his decision. The issue I would bring to mind is this for future references.
There isn't any thing " wrong" with spending time with the opposite gender while in a relationship but is it " wise" to do so ? It could easily fall into a situation that leaves someone else hurt . Trusting your partner is a foundation of mutual respect but respect goes both ways . He and I hope he did have you heavily involved with his decision to care for another woman no matter who it is. Personally I would NEVER make that decision without the consent and presence of my partner .
I still believe no matter what you've done " belittling , snapping or such" it was a way you were trying to communicate with him. Though it may have been not so much in a positive way but communicating none the less. Of course it is difficult to always talk about emotions ( even men) and especially emotionally heightened subjects.
I hope you heal and become a stronger person in which this life lesson has taught you. I pray you find that person that you " need and want" . Remember as you well know that there is no "perfect " person but there is " perfect " relationship waiting for you. Take care and be the strong woman who you truly are.