Sentence:  Sure, he was a <WSD>rebound</WSD>, but he was a respectable <WSD>rebound</WSD>. Then, the <WSD>rebound</WSD> broke up with me. 
Meaning of the word marked with <WSD> tags:  A romantic partner with whom one begins a relationship (or the relationship one begins) for the sake of getting over a previous, recently-ended romantic relationship.