Is my guilt natural?

I find this troubling. My poor relationship with my adult children causes me distress. Logic and the dharma would suggest that severing ties with them would be a positive for both sides. But I cannot get over the feelings for neglect and guilt. Plus I may be causing them some current discomfort. They neglect me because they don't understand me seeking the jewel so I try to respect that BUT how do I get past this guilt and sadness?