Why Miley Cyrus and Liam Hemsworth may have broken up…

Miley Cyrus has confrontation with a photographer while on an afternoon bike ride with her boyfriend to a 7-eleven store in Toluca Lake Ca on March 26 2010. The usually mild mannered Miley approached the pap while her boyfriend kept his distance! Fame Pictures, Inc

We were all shocked to hear that Miley Cyrus and her boyfriend Liam Hemsworth had split up – but now we’re wondering why.

Does celeb blogger Zack Taylor have the answers?

ZackTaylor.ca reported last month that Liam was having a tough time with Miley being friends with her ex-boyfriend, Nick Jonas, and always “running to him” whenever the two would get into a fight.

He also reported that Miley has been seen recently being “playfully flirty” with her current LOL co-star, Douglas Booth, while on-set.

Miley and Liam met on the set of her last film The Last Song. A rep for Liam confirmed the split.