Guilt about business travel is ruining me

Just got back from a 4-day conference in Vegas. My kids were fine, my wife held down the fort. Logically I know this is normal and necessary. But my 3yo wouldn't make eye contact with me for like 20 minutes when I got home and I just... sat in the driveway for 10 minutes feeling like the worst person alive.

How do you guys compartmentalize this? I have another trip scheduled in 3 weeks and I'm already dreading it. Is this just something you get used to or am I broken?