Well you have the seemingly unfortunate(mostly difficult) conjunction with saturn and your venus. Saturn tends to make things more difficult in terms of having to work at it or a restriction placed upon the planets it contacts. Venus is representing your romantic side and nature (among other things) and this is being restricted by, but also refined by Saturn giving a practical and dignified sort of energy to it.
A great deal of your energy and thoughts(essentially the entire chart) end up filtering through saturn/venus as well. So the way you prefer to process things (thoughts/emotions) all comes through that conj, so i would focus researching on this part of the chart for now. Another important influence may be the sextile of pluto and mars, but i cant offer any interpretation for whatever reason(brain fart).
Saturn is an especially tough influence at a younger age, so finding your forever person may come at a later age like you have suggested, and I'm not surprised that it has been difficult for you thus far. However, this relationship will probably be stronger and more stable than relationships that started in the uranian way of implusive and sudden, albeit exciting, which may have been the manner in which others around you have met people.
Venus being in scorpio, and pluto being the final dispositor (energy is all filtered to it), creates a strong passion, not even mentioning your strong exalted cappy mars (desire and sexuality) combined with a very emotional moon (subconscious emotional quality) in pisces. All of these factors creates a very strong desire to love, but a strong ability to be devoted and passionate as well.
I'd guess many guys have not really appreciated your ability to be loyal yet passionate. Honestly, most guys WONT until they are older anyway. You have a heck of a lot to offer a man, and if they don't see it they are probably immature or not ready.
In all honesty astrology can't tell you exactly when or if you will meet 'the one' with much absolute certainty, not to say that is your expectation
I think you will personally if you keep at it without becoming too bitter or jaded about the jerks who wont appreciate you. Saturn reaps great and lasting rewards through slow and steady progress.
Hope this helps.