I´ve noticed that l a lot of guys, when they first meet a girl they like, they chase her, flirt a lot, etc. but then after the girl shows interest too, they go completely cold. and sometimes they blow super hot and then cold.
Most Helpful Guy
There are two main reasons they might do this. They may just be shy, simple as that. Alternatively, they could be seeing signs that they've seen in the past. Girls use certain types of language to avoid outright rejecting a guy who they are talking to. An example would be if a guy asked out a girl and she gave an inconclusive answer ("haha maybe"). It leads a guy to have false hope which inevitably leads to disappointment when the guy figures out that she was never interested. If he sees the same signs that he has seen before with indirect women then he may think you aren't really interested. It can be a bit difficult for a guy to tell in certain circumstances whether a girl is genuinely interested or just playing along.2