My son is 17 and started seeing a girl a few months ago. She blows hot and cold with him and will either see him for 3 days straight or makes excuses not to see him for a week at a time. He gets really upset over this. As far as I know she hasn’t cheated on him and they seem to adore each other when they are together. They finished it in August but now they have been meeting up again. He confides in me about it all and we are close. We have spoken about whether it’s the right thing and I’ve told him I don’t want to see him get hurt but he said he’s prepared to take that chance. He is also close to my daughter who is 23. My daughter is angry they are seeing each other again and thinks I should put my foot down and stop her coming to our house. However, I believe, as teenagers do, he’ll just try to see her anyway and I worry it would alter our relationship. He knows I’m wary of it and I just want to keep the lines of communication open with him. What do you all think?