My husband was diagnosed with Grade 4 prostate cancer two years ago. He has had radiation treatment and hormone therapy, bringing his testosterone to zero and thankfully controlling the tumour so far. The problem is he has undergone a personality change. He was always a gentle, polite man, and never lecherous or rude. Since last year, his behaviour is increasingly erratic,  rude to strangers, aggressive to strangers, obsessed by sex (he has no erectile function at all now) uses crude language, says very inappropriate things. I find his new way of being very unattractive and I cant hide it well, so he is increasingly needy emotionally, sensing my revulsion at his behaviour.  Very often our teenage daughters are so embarrassed by his actions they cry. We had a wonderful relationship for 20 years, but his recent behaviour (presumably due to the treatment) makes me feel so upset and anxious all the time, he's not the man i married, nothing like him, and I honestly dont know if I can keep going. My mother died of brain cancer two years ago as well, and my father also has very complex medical needs and is quite a difficult personality  so I am exhausted from personality altering cancers. 

My husband used to be on my side, we were a team, and we faced things together but now that's all gone. He cant help it I know, but its so hard to cope with.