Prayer Request: Intervention For Marital Bliss

I have been married for four months. Unfortunately, the pain I am going through now is too heavy. I had a big wedding but till now i have not experienced the joy of being a bride/wife. My husband is cheating on me and has moved out of the house to live with another woman. Recently he gave her his phone so that she can brag on how she’s snatched my man from me. I have been praying and fasting but I am yet to get divine intervention. Sometimes I feel like giving up and cheating on him as well. I am so angry and keep asking God why he’s not coming through for me. It has reached a point that I keep to myself because I don’t want people to know my predicament. Why did God bless me with a big wedding  just to have me suffer through infidelity and conflict this soon?  Is anyone out there listening? Please pray for me!