Is he flirting? Trying to get my attention?

I dated a guy for six months. We were really close–I thought. He told me he loved me & cared about me–& showed it as well. Two months ago he told me I was beautiful, intelligent, & perfect for him but something was “missing” & we split. He says he is scared because he was hurt badly by an ex-wife who cheated on him & hasn’t had a relationship for years. But he’s been divorced for 15 years!

We remained Facebook friends. Lately, he “likes” & comments on my posts daily, sometimes multiple times a day. Last weekend I went to a party & posted some pics of me wearing a sexy little red dress. He commented on the album with a single word: “Ouch.”

He also keeps finding little reasons to stay in contact with me. It’s confusing and feels like mixed messages. I know for a fact he’s not seeing anyone else. Why does someone dump you & then behave like this?