I'm starting to think there is something wrong with me as I'm in my 40s and all my relationships turn out to be toxic , I'm very kind and good natured and when I'm with someone I gave them 100 percent maybe that's the problem as people just seem to walk all over me , the last man I dated for 9 months I really thought he was the one , we both told each other that we loved each other, we made so many plans, and then I find out hes decided to go back to his toxic ex , I don't know the woman but his family hate her and say all she did was abuse and cheat on him , he told me a month ago that he felt like he was having a break down I told him I'd stand by him and then I find this out I'm totally devastated , any advice would be appreciated thank you