Looking back at the housing boom is a painful exercise for many homeowners – particularly those who bought at the peak of the real estate market. Who needs another reminder of what was possibly one of the worst financial decisions they ever made? Yet, a look at the first four months of 2010 can’t help but bring back those memories. Pending h/me sales have risen for three consecutive months, according to the latest numbers released by the National Association of Realtors. In April alone, the Pending Home Sales Index, a forward-looking indicator, jumped 22.4%, following gains of 7.1% in March and 8.3% in February.