Running in pairs

So I am a solo runner. Not because I want to run by myself and have deep thoughts. Its just how it works. Well today I was running at young arena and my friend (a personal trainer) was there too. So she ran with me for a while. Boy did she push me. I ended up doing 3 miles in 30 minutes. WOW! Can't wait to run with dad this weekend and see how we do together.