However this works it needs to be carefully financially managed. Even if you have 'spare' cash to be sending every month, bear in mind that you also need to be planning for your own future and retirement (however far away it nay be). The UK doesnt work in the same way, and the Government pension is not enough to live in with any degree of comfort, so you will need to plan for yourselves and make sure there is enough going to YOU before sending too much sustento.
I'm surprised you didn't know about this before this stage in your relationship though. Its a fairly standard practice and most of us learn VERY quickly that we're not just in a relationship with our gf/fiancee/wife, but her family as well. Financialy as well as emotionally.
