I don't know about always (the promise for disillusionment)...but then again, it wouldn't be Neptune if we didn't suffer pain and loss...there is meaning there and something to learn. It's a dity trick Neptune plays on us, but a necessary one. I would almost say for certain you will suffer in some way, shape, or form...how much you suffer depends on how far you allow Neptune to carry you away to pure bliss. But, don't that frighten you...go where Neptune takes you, it has a lot to teach you...pure love, bliss, heaven like, pain, suffering, disillusionment, loss.
My big advice to you is be careful with you money...don't allow yourself to go broke for someone or something. People might take advantage of you. That didn't happen to me luckily, but looking back on it, I see there was the potental. When your in love, your willing to share all that you have with the other person. Just be cautious and careful this person is really worthy of your time and money. You never know what Neptune will bring you, it could be real saint of a person, or an eel. Don't get involved with people who have drinking or drug problems...thinking you can save them. Neptune has a lot to do with savior/victim relationships. good luck.