Your son,who's 15 years old,he invited his bestfriend to your/his house to play together,when his friend comes,you see his father,your son tell you that his friend's father is a single parent just like you.

Your friends go up to his room with his friend and start play video games,his bestfriend's father still standing there and he looks at you,he looks mature and gentle "oh hello Miss,may i come in?" He adjust his glasses