So last night my sister text me saying her DH is on Instagram.. Long story short, my sister had an affair 3 years ago. It was a horrible time for everybody in the family. They got back together and they both decided to quit social media as in Facebook and Instagram. It turns out her DH literally came of it for a month or so and has been on it liking and commenting since. She had it out with him and he blatantly denied it even though she had the proof. His excuse was I went on it the odd time or I had to message a friend because I lost their number. My sister is really upset, DH still brings up the affair even though my sister has done everything to make things right. She doesn't see her friends anymore and basically stays at home looking after the children. DH seems to think that he can do what he wants because she made a mistake. My sister wanted to get back exercising and was told, there's nobody to mind kids. Then he turns around and says I'm starting a 6 week fitness programme with my brother and will be doing 3 evening exercise classes. I just really feel for my sister to be honest. The reason she had the affair was because DH really took her for granted. He would come in late from work, eat his dinner at the table with his headphones in and watch his phone. My sister had no life at all. Everybody thinks hubby is great because he comes across as loveable and kind to everyone but I've seen the real side of him. I just don't know how to help her and why did he lie about being on Instagram?