I’m 66 and been in a great relationship for 10 years.we are not married but I love my partner dearly. Recently I suspected there was someone else involved and ot came to a head last night where she said she was going to spend the night with him. I was utterly devastated not lease because I didn’t believe she was capable of being so cruel. After spending all evening crying and my heart pounding I received a text asking if I was ok! I simply replied ‘no I’m not’. I don’t know what to do - we live in a shared house with no mortgage and literally everything I did was together. I’m heartbroken