<human>: Can you provide a brief rundown of the text in within 3 sentences?

My [30f] Bf [48] flew his nieces [mid 20s] in from overseas to come visit for three weeks. The three of them have gone road tripping around out beautiful country. I could not join because I have work commitments. 

Since the day they arrived he has been almost completely ignoring me, I'm trying to be understanding and give him space to visit his family, but in the past two weeks we've talked on the phone for a grand total of 15 mins. (He has cell service and doesn't have to pay long distance and has unlimited text msg) I'm not overwhelming him with attempts to contact cause he clearly doesn't want to communicate with me suddenly. I'll send him like maybe two or three texts per day just saying hi or whatever, nothing angry, and he will respond to maybe every six or seventh one. 

He travels a lot for work and pleasure and in the past when he has been out of town he would email/call/skype/text me every night to tell me about his day or to just catch up (regardless of whether he was visiting family or not) so I don't understand why things are different this time. 

I mentioned this over text in a neutral way and he responded by saying that I am just making up problems and that everything will be fine when he gets back. 

My feelings are hurt that he doesn't want to share his day with me or even talk to me at all suddenly.

Advice?
Thanks
<bot>: bf took his nieces on a road trip and is almost totally ignoring me. He's travelled with family before and didn't ignore me then.