Depends on the circumstances around the breakup, I suppose. You mentioned it "got ugly" ...in what way? Did he want to break up with you, or was it your decision to break up? How did he feel about the whole thing? He could be trying to let you know that he still cares about you, or perhaps wants you to remember how you felt about him at one point. For example, when my friend cut me out, it was as if she hit a switch and forgot about everything we had been through together. I tried reminding her of of some of those things hoping she'd remember and treat me like a human again ...of course, it didn't work. It wasn't that I wanted to reestablish a relationship with her again, but I did want us to at least be on good terms. Either way, I don't think it's fair for him to have sent that, especially since it's likely to cause upset. I guess it's sweet... but that doesn't necessarily mean you should react to it.