Potential cofounder is good match business-wise but not personality-wise

I met a potential cofounder. He is the same age as me and we are both interested in building a startup in the same field. Our skillset also complement each other's. On the work-side of things, we are a solid match.

However our personalities are quite different. In other words, I wouldn't want to be friends with him or hang out with him as a friend. Actually come to think of it, he's not someone I want to sit next to for too long.

I figured that if I am to build a startup with someone, I could be sitting next to them 12 hours a day, every day, for many years to come. I have to enjoy or at least tolerate their company. At the same time, it's a rare opportunity to meet someone whose interests are very similar to mine with complementing skillsets.

I could keep looking for other cofounders, or I could try to see if I can learn to tolerate this potential cofounder. What would you do in this situation?