OP:
1, 2) I don't have a "DISTINCT" set of methods for dealing with different people. I can't sort people into people that I like or dislike. Generally, I both like and dislike most people- in different ways, to different extents and for different reasons. It's impossible to give you an answer to your question that would be an accurate representation of my behavior.
3) There are people that I dislike whom I actively approach and talk to, and there are people who I like that I barely talk to at all.
4) It would depend on why and how I dislike them. As a general rule, yes- unless I have something better to do, or the person is impossible to communicate with.
5) I used to be very, very blunt- I naively assumed that people would appreciate the honesty. I try my best to avoid being unnecessarily blunt these days, though it still happens sometimes when I'm not paying attention to myself.
Cheers!
PS: It's completely okay to ask him "Why don't we hang out anymore?". Don't be needy, say something like "we used to have so much fun together, didn't we?" The worst thing you could do for your chances with an ENTP is to give him the perception that you're trying to cage him up. Appeal to his sense of adventure- suggest doing something unusual or crazy!
PPS:
Yeah. I texted him twice, and both were pretty spaced. One was 'So, what are you up to?'
The other was,
'GRAH, talk to mee.'
No reply.
I quit.
I am very bad with texts because I get distracted very easily- I often accidentally ignore messages from my INFJ girlfriend (whom I love very much!) and end up having to face her wrath for it. I never seem to learn...