I Got A Babymama Pregnant and Married Her… now I want to end the marriage

A young man who goes by the user name Gabaz, said he got involved with another man’s babymama who he later discovered lies a lot after he had married her because she got pregnant for him:
“I am tired of my marriage. My only joy in that marriage now is the 1yr old son she had for me.
I married a single mother… She tells a lot of lies and I feel she might be cheating on me.
Though she doesn’t know how I feel about her, but I just don’t love her anymore and I now get home late in the night these days.
I want to quit the marriage. How do I end it and keep the peace for the sake of my son?”