My Father Is Going Crazy After My Parents Divorce

TLDR: My father has spying software in the house wtf should I do?

I am a young teenager and my parents have recently divorced— they had told me in late February. Ever since then, my parents have both gotten new partners although my parents still live together. (My father is not yet moving out and I am not sure why) but lately my father has been acting weirder and weirder. He had started out going to bars (he only drank at his wedding) and going to parties. He has been extremely illusive about his girlfriend and hadn’t told me or my mother about anything— apart from her being 12 years younger than my father (my parents are similar in age). He would read my mother’s texts, and he had recently bought a boat— a brash decision considering we are currently broke and he is racking up in debt. He has done these other rather strange decisions but we had simply amounted it to being just a midlife crisis.

But then things would get worse, as my mother has recently found that he has a computer application called “snooper” on his computer. I had researched about it and found out that it is indeed listening to our conversations. My mother and I find this extremely creepy and now have to tip toe around the house about things.

Does anyone know more about the Snooper application or any advice or simply what to do or if this is normal? Thanks for reading.