The second time I had to ditch my partner. I found him stealing money, he had no drive either. Just a wretched scrap of humanity. After taking the code and letting him keep the worthless domain he was supposed to do SEO on I registered a new domain and got the site up in a night. Ended up being reasonably profitable at $2,000 a month, but was just too much work for one person. I sold the site in 2014.
Since then every time I find a "co-founder" it seems I end up doing most of the work. Maybe there is something wrong with me or maybe its really hard to find a good co-founder.