Ultimately, remember that whatever you choose to say, you need to respect your boundaries. “Keep channels of communication open so your friend feels they can come to you when they have concerns about the relationship and that you’ll be there [for them] in a supportive capacity,” advises Anoushka. If the relationship proceeds and later fails, resist the urge to adopt a self-congratulatory attitude and rub it in your friend’s face that you were right all along. Rather, this is your chance to prove what a good friend you are. No one wants to hear “I told you so” so it’s best to be a listening ear.