A woman seeking a lasting relationship needs a man who respects himself and others. Casual flings erode confidence. What matters is knowing the partnership is healthy and sustainable, so she feels excited when he comes home.
Okay, the next thing a woman really wants from her man is she needs to see that you respect yourself and you respect others. Especially if you're talking about someone who just wants a one-night fling, she frankly does not care who you are as a person. That's one of the reasons why one-night flings are so detrimental and why they crush people's confidence so fast. However, a woman who wants to love you forever, a woman who wants to wake up by your side every single morning and who wants to get ridiculously excited as she waits for you to come home every night. That kind of woman, she needs to make sure that this relationship is going to be a good thing, that it's something that can last forever.
