He's not too busy if he wants to follow her...
I'm pretty sure he doesn't know she has a twitter or that she's following him! If you watch his twitter account, you can see that he's not the kind of guy who spends a lot of time on twitter, besides the last person he followed is his best buddy Dino! I'm sure there is no hard feelings between them
He would probably follow her ... if he knew that she had a twitter
The funny thing is that Hayden followed her friends on twitter after they sent her a message (like "ohh you finally got an account", then she answered and followed them) but not with Milo! He didn't talk to her (since he probably doesn't know) and no one mentioned him... yet she quickly followed him (the only one from "Heroes"
) I was very surprised and happy when I saw that!
Anyway she's still with her football douchebag