Does my ex boyfriend deserve a second chance?

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My ex-boyfriend told me a month ago that his ex-girlfriend gives birth to a baby boy and contacted him. He told me that she's telling him that the baby was not his but she wants him to go to their place to see the baby and to brought all her things that she left from his house. He told me that he will not go there. After that, I keep on sending him text messages to know how he was and I got mad because he didn't find time to respond. He keeps on telling me that he's busy with his activities in school and he got mad because I'm always checking him. Few days passed, I found out that he's been posting the baby's picture to his friendster and he seems so happy. I make some conclusions into my mind that he's been ditching me and he was with his ex girlfriend all this time. Now he wanted to explain everything and told me that he really loves me. I don't know if he deserves a second chance. I still love him but I'm afraid to give him another chance to hurt me. P Please help me. Post your suggestions.