Would it have been better for them? In the long run...yes. As much as he didnt want to admit their lives would have been better and not stained with their recent actions. But they still would have been hunted whether by the Death Eaters or by the Order.

"In the long run they would have been better without me." He spoke in a soft voice that had a lot of pain in it. "They might have had a better chance taking that risk. I know when we were arguing, I could never sleep. I kept thinking thats when she would take Draco and leave. I was always surprised to still them the following day. There were times, I wish they had left me."