TL:DR Company partner screws up and doesnt do job. I start new company and now able to make ends meet.

My friend and me started this company together. Our roles were defined. I would manage the development of stuff and he would manage getting the clients. I did my job. About a year into the company. He goes ahead and partners in another company. Normally I wouldnt bother, but this is when he stops getting clients for us. Our business drops 50% in the second year. He doesn't work but expects to be paid the same salary as me. I'm doing all the work for the clients while he wastes his time with the other company. He manages to make money doing stuff and buys a BMW, while I'm struggling to make rent.
Finally in Dec last year, I plan to start my own company. And i suddenly have lots of work which pays decently well. I'm looking to hire and am not as stressed with work any more.
Moral of the story: if you must partner, make sure your partner is fully invented in growing your company.