I feel for this individual. I have toyed with the idea of vegetarianism, and for years I largely only ate meat that I or my friends had killed ourselves. I quit a while ago not because of moral reasons, but because of convenience. This weekend I had some chicken gizzards at Chubby's in Clancy, MT and damn, they are some of the best I've ever had and I have no desire to change my ways. I think it is good to be an "examined" meat eater.
I don't think vegetarianism or veganism or being an omnivore are as easy to defend philosophically, as we as hunters or those who are fervent vegetarians would like to think it is. Read philosophers with tight logic, like Peter Singer, Jeff McMahon, Toby Ord, or Richard Carrier. You realize that the reduction of animal suffering is a heavy topic, and as much as I love his show, Steven Rinella does not offer up a very good philosophically sound defense of omnivorism. Maybe because he's never had to.
When I have discussed this issue with people I know who are vegetarians I almost always point them to a blog post by Richard Carrier titled
Meat Not Bad. It only skims the subject, but gives a good start to three arguments supporting being a sometimes-carnivore.
-Why Compassion for Animals Does Not Necessitate Vegetarianism
-Why Concern for the Environment Does Not Necessitate Vegetarianism
-Why Vegetarianism is not Healthier
It's worth checking out.
http://freethoughtblogs.com/carrier/archives/87