How is gender represented in the clip, "the mistress"?

In this clip we see the first couple Richard and his partner, discussing the pros and cons of staying at home instead of working. Richard was made redundant so his partner, smartly dressed and appearing as middle class is sorting the children's lunch boxes, whilst persisting she still must work as they have things to pay for, despite the mortgage being almost paid off for. She is represented as a strong character but Richard has more control, as he hands her the coffee in a mug reading "super mum" and also takes the lunch boxes off her and packs them away. They have subverted roles. Traditionally the man is the breadwinner and the woman would be paid less, but it becomes obvious she earns enough to keep them both living comfortable. The miss en scene also suggests that they are off middle class, and gender is being represented in an un-traditional way in the sense that Richard is not working and that he is a stay at home man. They have a smart looking cooker, and there both dressed well. The conversation is realistic by the editing in the clip, They use slow limited shots (usually being mid shots)and two shots to show the conversation. There is very little sound in this clip apart from the establishing shot there is a sound bridge from the opening of the program onto being in the kitchen.
In the next clip we see a struggling mother trying to get her child dressed for school, she is shown in dark grey clothes, work gear possibly, and from a long shot to a close up, also a mid shot. There clever camera angles show the lady as low down struggling, and weak. We see her ex partner, father to the child running out of the shower naked, followed by his attractive blonde and young girlfriend, a comparisonto the lady dressing the child. In this scene gender is represented by the man being domineering, as he is shown from a high angle so we are looking up at him. Gender is represented as the young attractive being powerful for example, the mans girlfriend says "morning" to the lady on the floor and makes her feel awkward.
In the third scene there is more of a traditional couple, we see the man coning home to his wife with a bunch of flowers from being at the pawn brokers which suggests to the audience that he is struggling for money. However, the way he is looking after his money issues and looking after his wife, displays a more traditional role in the relationship. He comes in and says to her "I know it will work this time" as they are going for ivf treatment. Later on we see the bailiff come to the door and he panics, shows a not so strong man, as his girlfriend comes to the door she emphasises that is their flat whilst he backs away in the dark corner this suggests that he is domineered at times by her.