Next week, I'm going ion a road trip to Granada, a city in the south of Spain. Next week, I'm going on a road trip to Granada, a city in the south of Spain.

I'm going to see a friend that I haven't seen sincefor a year ago or two. I'm going to see a friend that I haven't seen for a year ago or two.

I'm going to see a friend that I haven't seen since a year ago or two. ago I'm going to see a friend that I haven't seen since a year or two ago

Is going to be just a will be there just for the weekend there, but it makes me so happy to share this time with them. I will be there just for the weekend, but it makes me so happy to share this time with them.

The first part is a sentence fragment which doesn't state a complete idea. I rephrased your sentence to what I think you would like to say.

Is’m just going to be justthere for a weekend there, but it makes me so happy to share this time with them. I’m just going to be there for a weekend, but it makes me so happy to share this time with them.

You could also write “It’s just going to be a weekend there.” In this case it would be understood that the full meaning would be “It’s just going to be a weekend (that we will be) there”.