You are making me go there. I know this will sound irrational and hateful to some people.
Around the time Matt left the house, I think he realised the persona he was projecting was not getting the fans he expected. He realised Jade was popular after surviving several evictions, and popular within the house (whilst Tahan and Mikk were being nominated every week). His strategy became to create a showmance. The second Jade questioned him about his friendship with Tahan, Ed dropped Tahan. This made Jade believe he cared, and Tahan fans start buying the "Jade is being manipulative" line. When in fact, it was just Ed being gutless. Then the divide started to "happen". Tim and Jade had a good friendship up to that stage, and from the outside they were probably looking the two most likely to win. Ed started with his rubbishing of Tim, exacerbating the divide, whilst trying to "woo" Jade with the Garden of Eden date and the plastic bag flower petals stuff. He convinced Jade he liked her. He convinced ME he liked her. He gets evicted, and the second he gets out of the house he is going on and on about how great Jade is and meeting her parents. Because to people like me, that makes him seem like a decent guy. Then what you say above happens.
I think he used her to create this image of being a "great guy". Now that it has become obvious it is over, posting about the blog reinforces the narrative Tahan created that Jade "relentlessly" pursued him. He still seems like a great guy in his eyes because his friends and family would know him, wouldn't they? It is clearly all Jade's fault - she "forced" him into a "relationship".