This is true. I have my best-girl-friend, but I feel alone when I talk to her, because she says she understands, but I don't feel better. The ways that good guys comfort girls helps with the kinds of things that girls can't help each other out with.
When people make you feel unwanted, don't leave to make them feel sad or guilty, they won't. Leave because you no longer have a reason to stay. Sometimes you have to be strong for yourself. What's meant to be will end up good and what's not - won't.