Narrow Escape. (How cheating on my spouse almost landed me in Jail for life)

I am a married man with 5 beautiful children. With all sincerity I've a good wife, she's a wonderful mother to our kids. Unfortunately we are constantly arguing and fighting due to my cheating habits. My wife has warned me severally and said one day I will meet my water loo and fate will find me out.
I have a girlfriend who lives in delta state and we have been dating for almost 3 years. Each time I have those fights or arguments with my wife or get tired of being around my wife, all I need is to put a call through to my girlfriend to come down to Benin where I reside with my family and she's available.
Last month I invited her to come over and she did and we spent 3days together. She returned back to delta state only for me to hear the news that has made me live in constant fear and regret of the day I started cheating on my wife. After my girlfriend left that weekend, I got the news that she passed away the following day. All my sins came glaring to my face and am so afraid of praying to God to forgive me.
I cannot come to terms with all these hoping am not even linked to being the last person that was with her before her death. I am just writing this not because I want to get sympathy but to let my fellow men know that they should desist from cheating as no one knows tomorrow and what the next page will bring for us. Damn I'm so depressed...