So far i just told her that I am very happy for her, but I snooped his facebook and instagram accounts and his ex-wives account to get all the details of what happened and what I discovered was the same thing as what my sister told me. I know my sister is very in love with him, and she is very excited because it's hard to meet men nowadays but I don't want her to go through with something that she might regret. I suggested that she take things slowly and not rush into anything to ensure he is remarrying for the right reasons. She just moved in with him as well. He has 2 kids from his divorce and shared custody.
How soon is too soon?