My estanged wife never talks about selling hse should i leave going on 4 yrs?

she just stopped having anything to do with me after 30 yrs &grad daughter wa born tried councelling i walk too fast golf to well bike too fast found her withex best friend fondling andlip lock said nothing going on????? was sick but she would never check to see if i am alive in am she never in 30 yrs has asked if i worked hard or if tired no word of encouragement or loving words i was a good provider worked weekend off not abusive never ran around treated her with respect & loved her &spoiled her she aways would undermine me when it came to the kids i can't seem to move on is there something wrong with me