When I fall in love with a personal project, it happens to me too. The important factor is that I don't have anyone else to explain myself to, no one blocking my changes, I own the whole project from the bottom all the way to the top - it's basically just a giant positive feedback loop.

I checked my stats and over the last six weeks I have dedicated my spare time (of which there has been more than usual, but I have a family and work 9-5) to my current project, and I've averaged 7 commits per day with 59308 lines added, 22903 deleted.

I am feeling a little burnt out now, but fortunately the code is essentially done and all that's left is a little mop up and writing a blog post.