I agree with you that suggesting something is as hurtful as saying it especially when it comes to rumor. What is not said is left to people's imagination and as we know these run wild!
Your character has very much evolved over the years and this time we see someone who is certainly lonely but may be worse who is isolating herself. I know you always had 'good reasons', but wouldn't it be valuable to examine it. I see a pattern and my guess is (2 cents) there is a part of you who can't be vulnerable. You do not let anyone close, worse you choose people who do not care (Tamra), or who will choose you for very superficial reasons (Brooks), or will abandon you (Don and previous husband(s?)).
May be Lauri's declarations would lose a lot of their 'potential for disaster' if you just recognized your fallibility, imperfect nature, and yes sometimes mis-steps. because after all you are just on of us sharing this so imperfect and complicated human nature. We would love you more for it, you would feel less lonely and may be attract more suitable friends.
Just a thought