Me writa a letter to my friend living abroad

Hello old friend! It’s been quite a while since we’ve seen each other or even spoken to each other, how are things going in [wherever they are]? Things are going well here, but the [wife or husband dunno your gender or orientation] and I were wondering if you’d like to come along with us down to [place] to have a little fun and catch up, for old times sake. Let me know if you want to tag along!

Till next time,

[Your name]