I’m lost!

22 years of my life I’ve been with my husband....we were together since we were 13! Been through soooo much in life together...when he was financially emotionally and physically down..I worked my ass off to get him back on his feet! I fought the entire world for him! And now after 3 surgeries and countless rounds of IVF we have a miracle baby who just turned 1 year! I found out he was cheating on me with a woman who I had introduced as a friend since the time my son was 5 months old...we got past that and I thought maybe just maybe he will change and now I find through his texts he’s been with another woman! I don’t know! I just don’t know what the hell to do!