It's an interesting question, for sure, and I agree with what has been said -- there's a certain interplay between having a nice hairline and the instantaneous attraction it will garner from some, and then the very hypothetical possibility of this very thing occuring being a boon to your confidence, which is will instantaneously attract some, as well.
I would say this, though, generally speaking: no matter how bad your hair is, you can still have success with women, and no matter how good your hair is you can still have abject failure. I can personally attest to the latter, unfortunately (speaking about my earlier youth, but, to be candid, my present to an extent, as well).
Like Bill said, hair restoration is not just a process that improves our looks; it is fundamentally tied to our very virility and the psycho-emotional confidence to not just function but *thrive* with the blessings we all have, and make the most of them, and, of course, life itself.
The key with hair restoration is to have a fully informed view of your hair and the surgery so once you attain the excellent result you deserve you can truly make the most of it.
I also agree w/ Ronald that there's likely a good deal of sub-conscious (positive) signals you are emiting to the world -- on top of your obviously blooming new hairline.