TechCrunch founder Michael Arrington is facing some serious allegations made in a Facebook post.

Jenn Allen, founder and CEO of RTist.com, claims in a recent post that Arrington was physically and emotionally abusive in a past relationship. She also claims that he threatened to murder her if she told anyone about the abuse.

You can read the entire post below:

Last post on someone i’m completely over. I’ve never been lonelier in my entire life. To all my friends who loved me for who I am – thank you. Power hungry people, I loved Michael Arrington for 8+ years starting when i implemented Eurekster search at the time on Techcrunch in 2006 and throughout the years i didn’t know he cheated on me multiple times, then tells people it was me immediately after he did it. It hurts when you love someone borderline and they can’t feel anything at all for you, and threaten to murder you if you told anyone about the physical abuse – all for keeping his reputation. The emotional abuse was equally bad. On a positive note, it can’t get any worse than this and I can’t get myself of this bed.

Gawker, who first spotted the post, was able to confirm that the two did in fact date at some point – specifically in 2006. Allen’s Facebook post indicates that the relationship lasted for “8+” years. There are plenty of photos of the two together back around 2006 – you can check them out on Flickr. So it doesn’t appear that the relationship is in question – but these are some pretty serious allegations for a public figure.

Obviously, this is a developing story.

UPDATE: Allen commented on the original Gawker post, making more allegations against Arrington, including rape.

[Image of Allen via Facebook]