DEAR ABBY: I recently made plans with a friend. A couple days beforehand, when I texted her asking if we were still on, she told me she’d made other plans. She claims she forgot we had plans, but she told the other person there was nothing written in stone, so she opted to hang out with her for a special birthday dinner. My friend admitted she wanted to spend time with the other person, which is fine, but I don’t understand her lying to me about forgetting our plans. Now I no longer trust what she says. Lying does not build relationships, and she doesn’t appear to care how I feel. I don’t know…