I am planning to travel bloodthirstily by train this summer.. To go to sleep with black people in train terminal, to sleep with Spanish women in hostels.

Response: Do not desire much about sleeping with black people.

My attempt at the first sentence.

Bu yaz tren´le hunharca gezmeyi planlıyorum.

This summer I am planning a bloody tour by train.

Sorry Faruk, I am too slow, but I know the whole translation now thanks to you. 

What is a "bloodthirsty" trip. Does it mean something special?

Thank you for the translations! I´m not quite sure what a bloodthirsty trip would be, but it could mean that he is very serious about the trip. I was curious what is meant by sleeping with Spanish women; are there sexual implications?

You will notice a slight difference in the verbs

To go to sleep with black people in the train terminal, and to go to bed with Spanish women in hostels.

There is certainly a difference implied here. Probably just guys talking crap, and certainly not something you would put on the internet if you had a girlfriend, and you didn´t want to put worries in her mind.

I think he did not mean bloodthirstly, but something else. Maybe used a wrong word or meant something else. Looks like he tried to mean he would travel a lot, he would go many places.

"Sleeping with Spanish women" I think there is the meaning of having intercourse in this sentence. Otherwise, why would someone write a sentence like that?

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As Henry said, they might have been talking crap but it might also be real.

Yes of course, it´s an unfortunate situation.. And thank you again, you helped me very much.

Unfortunately you now have a dilemma. 

If you question him about this, he will know you are checking on him, and it may become a trust issue.

If you do nothing, you will worry about the real truth.

Good luck with your next step ......