Aldridge, who won the League title and FA Cup at Liverpool, said Suarez should recognise how much the club have done for him after his racism, biting and diving controversies.
"There's a massive lack of loyalty there and especially the way Liverpool have stuck by Luis. Not everything's all about money," Aldridge told Radio 5 Live.
"The fans have been loyal, the manager's been loyal, his comrades have been loyal, and the hierarchy have been loyal to him. They've done everything in the powers possible to back him up and he's basically put a custard pie in everyone's face."