The fact that you are even considering it is admirable....

As for me, I can't see a time in the future where the gf will ever be welcome. My kids already know that I can't stand her (hard for them not to now, with her across the street).

My next issue is going to be Halloween - it is his dinner night with the kids, and it makes me sick to think that all of them will be out trick-or-treating. So far, S13 wants to hang out with his friends, not sure what D wants to do yet.

The whole thing is gross.

Six months is really early....
even the article mentioned decades.