I just caught a quick blurb.
"Billy Crudup & Claire Danes Split?
Billy Crudup ditched his 8-months-pregnant girlfriend Mary-Louise Parker for Claire Danes.
Have reclusive couple Claire Danes and Billy Crudup split? That might explain why the "My So-Called Life" star was in tears at Spring Street Natural, as we reported two weeks ago. Apparently things between the two actors took a turn for the worse when Danes mentioned marriage. Getting out when things get serious seems to be a Crudup habit. Back in 2003, he ditched seven-months-pregnant girlfriend Mary-Louise Parker to pursue Danes."
What I heard on E! News though is that Claire was caught in bed with her newest co-star. Which may tie into this if she wanted marriage and he balked and she 'got back' at him.
Just a bit of gossip.