It's a nicer form of ghosting. Soft ghosting is essentially when someone “likes” your last message but never actually says anything. Technically, they did respond so they can maintain plausible deniability that they’ve ghosted you. It can be used to gradually break up with someone, or to cool off a developing relationship.
Yet soft ghosting doesn’t exclusively apply to romantic interests. You can soft ghost anyone: your friends, your happy-hour-loving co-worker, your acquaintances.
Girl: After our last date Noah has liked all my posts, but he has replied to me.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.