I think when Dan and Annelise followed their dreams and moved to France, they were quite courageous. They wanted to own their own home and there was no way they could manage that in the UK. They had probably both worked quite hard in their jobs in England; they had been together since school and had hoped for a better life. I think they both had limited education and certainly Dan had zero common sense. They took on an enormous project buying the dilapidated house, but Dan tried to learn a bit about construction and was prepared to work hard. However, his lack of common sense and sufficient relevant education, meant that he took many dangerous short cuts. I doubt if they planned to start a family till much later, and they lived in pretty awful conditions with two babies. He found a part-time job in a place with an employer whose "influence" has an extremely negative effect on weak and easily influenced people. He observed that a pea-brained person could easily trick people into giving her thousands just by making a few videos. He learnt how to make videos, which he did successfully, and then the rot set in. He became arrogant with the success and the relatively easy acquisition of money went to his head. The loose morals in the dump also provided the opportunity to stray from his long-term partner and he and Annelise split. It's very sad after a promising start. The guilt lies with Dan himself thinking he can do anything without knowing and understanding how to do it properly and by becoming arrogant and thoughtless in his craving for financial gain. He has become so similar to Fanny who, in her own way, does exactly the same and in doing it, she causes harm to everyone under her spell. In Dan's case, he will harm himself, and his sons and ex-partner. It is both stupid and extremely sad.