In a new Instagram post, Alexis Mixter, the longtime girlfriend of ‘How I Met Your Mother‘ actor Jason Segel announced their split after staying together for eight years. Announcing the news with a picture of hers with Jason from happier days, she wrote, ‘This is a photo of two best friends. This guy and I have shared so much life together. Changed each other at a soul deep level. All for the better…It is odd to write about the end of a relationship…’ Keep watching to know more details.