Dear LIB readers: My husband cheated just two days after our wedding

From a female LIB reader

I got married on December 18th and I found out just yesterday that my husband had sex with another woman on December 20th. We didn't go for our honeymoon until the 22nd and I can't believe he was telling me he loved me and laying with me when he cheated just two days after our wedding. Just two days! He couldn't even give me two months, two days. How do I deal with this? I've moved out of our room and now staying at a spare room. I spoke to my mum about it and she said I should forgive him. Is this what I am going to face forever?