<human>: My girlfriend is going to Cambodia/Thailand on an 8-week camping trip with her University. I'd love to be supportive of her, as it's for a good cause. She'll be helping the less fortunate over there, however she's only going so she can do one less unit at University next year.

She won't be bringing her phone and won't have internet access at all. We have never gone more than a couple of hours without talking or texting one another.

I've tried talking to her about this trip and how I think she's doing it for the wrong reasons and that I'm unhappy being away from her for 8 weeks with absolutely no way of being in contact. Every time I try to bring it up she just shoots me down and says stuff like "It's my decision and I can do what I want" and that I'm just being selfish.

I don't know what to do... Is she being inconsiderate by ignoring my feelings about this or am I being selfish?

Can you give me the gist of the text in a nutshell?
<bot>: Girlfriend of 2 years is going away for 8-weeks with no contact possible. I'm unhappy and she doesn't seem to care.