Mother-in-law used his toothpaste; man abandons family during family vacation; social media post going viral

Social media is currently talking about a man who abandoned his family during family vacation after his mother-in-law used his toothpaste. The 38-year-old man had planned on going to Venice, Italy with his wife and daughter for the family vacation. Later, the mother-in-law also joined the excursion. He himself shared his experience on social media. The man shared the information on the social media page Reddit.

'It was my wife who booked the hotels. She booked 1 room of 2 queens instead of two rooms with two kings for us. I planned for this to be a romantic getaway, and did not want my daughter in the room with us. We could easily afford two rooms, but my wife wanted to keep an eye on her as well.
To make matters worse, my MIL was constantly in my space. She also had to share all of my wife's expensive products (facewash, shampoo, lotion, etc).
My daughter likes to sit on our bed when me and my wife are gone to the city, and I come back to see that MIL was sitting on our bed too. It is very unhygienic to me and I don't like that she was sitting on the bed that me and my wife share, as I am a very private person. She also rummaged through our suitcase looking for a hair tie, and it really irked me that she did so without asking me. I don't like the thought of her looking through our stuff when we're gone, so I locked it.
The final straw was when I woke up in the morning, I saw that MIL has yet again, forgotten something. For the last few days, she's been sharing the same toothpaste as me and my wife! I don't like the thought of her putting her tooth brush close to (or even on) the toothpaste nozzle and I was ill the more I thought about it. I asked MIL if the only reason she came was to freeload off of me and my wife, as she didn't pay for any of the expenses (hotel, amenities, food), only her own plane tickets. I said that I've asked her politely several times to stop using my wife's stuff, especially because I share it with her and it's very inappropriate.
My MIL was very upset and told my wife, and my wife screamed at me. I was very angry that the trip that I paid with MY OWN MONEY was now ruined, and I changed the date of my plane ticket and went straight home. My wife has called me several times afterwards, screaming at me and saying that our daughter is upset. I feel bad that our daughter was caught in the situation, but it was really not acceptable what my MIL did and I had to set some boundaries before it gets worse.
My wife has her own card and enough money to stay there. I'm not sure about her plans about staying or not. I've been ignoring her calls to take sometime for my own mental health"- the man wrote in the post.

After the post went viral, many people criticized the man. Many commented that one should not be such a cleanfreak. Many people also commented that he should not have left his family.