Complex sentence: Although he is a self-proclaimed "pro-family" activists, he co-habitated with a number of women not married to him after his divorce, ending with Lisa, whom he married after he started traveling to churches giving speeches about Columbine.
Split into simpler sentences: Although he is a self-proclaimed "pro-family" activists, he co-habitated with a number of women not married to him after his divorce. He married his current wife, Lisa, around the same time he started traveling to churches giving speeches about Columbine.