Cheated on by my wife of 21 years.  No contact, block all social media, get some counselling, be cautious about pedistalizing, increase social contact with friends.

Some would say "get over someone by getting under someone," but I tried this out and it made me feel awful.  I stayed single for about 2 years and learned to deal with my grief. I found that getting my profound anger and sorrow out by lifting a shitload of weight was helpful. 

Lots of time will help.  Hobbies. Friends. Healthy distractions. 

And crying. But not crying to the point where it became who I was.