You should write all of your feelings down in a letter. Tell him exactly how you feel. Just don't use 'you' statements like 'Why don't YOU ever call' or 'why are YOU ignoring me'. Use things more like 'It hurt my feelings when I didn't get a response about my drawing.' Sometimes I've found it's easier to write out exactly how you feel instead of trying to say it out loud.
That sounds like a good plan, I will try to do that. Thank you :)
I deal with an emotionally unavailable dad too. He is probably so absorbed in this long distance relationship he's neglecting his responsibilities. But, that isn't to say you mean any less to him. He's probably relatively unhappy, since long distance can be very stressful when the person is not physically there. He may also be hurt by you visiting less, and he may be spending a lot of time on his own, and that may be why he hasn't responded. I know this thread is a bit old, but let us know how everything goes with your Dad regarding the letter!
I'm so sorry for the late reply on this. Thank you for your concerns. It took me a while before I dared to face him with what I thought, but when I finally did he responded very surprised.. I think he may not even had noticed that things were so different? I'm not so sure. He tries a lot harder now to stay in contact with me, so that's a lot better. Hope he keeps it up when he returns from the USA and he won't be seeing his girlfriend for another few months (I hope this doesn't sound too self-centered because it is absolutely not meant this way!!).