Talaaq over watsapp

I'm a young 27 year old divorced mother of 4 daughters. Last year December I got remarried to my second husband. He is 24 year old never married and of purity a virgin, he was with me for a week, a week after he left we fought and I landed in ICU for pseudo seizures due to depression and a week after that he divorced me while I was in ICU. I was admitted for shock, depression and post traumatic stress disorder. We had debates because his parents disapproved of him wanting to marry a gal with 4 kids, we debated his coming back and standing up for himself and his wife, which is me. I explained that one shouldn't be nasty to ones parents, but explain in a nice way, because there is no valid reason of disapproval, and nikaah had already taken place, now what I wanted to know is if how talaq was done is right or wrong? It was done over watsapp all were done for no valid reasons, like when I asked to leave me alone in hospital, I was just crying and crying, he gave a 2nd talaaq for that over watsapp. Is it a proper way to give talaaq or not?