Translation of magersüchtig

I would like to know if Jack is interested to join us as well. Shared learning is called Tandem. I'm coming in 2 days to Spain. I will pay for the study costs of my daughter, and I assume all other costs as well.
I looked at your site on the Internet. It is very beautiful, the graphics are interesting and the site leaves a clean impression. I think that paintings and art in general are very interesting.
How long have you been practicing Spanish using this site and in which lesson are you now? I am now at vocabulary lesson number 3. It is still hard for me, but I'm quite new here and need to get better.