Google a traditional family of spellwork called Kiss Me Now - if you put the phrase "kiss me now spells" into a search, you should come up with something reputable.
Wear sweet pea fragrance. You can get the stuff at any cheap cosmetics shop, even Victoria's Secret. There is not a natural essential oil of sweet pea - it's a man-made concoction, but as sceptical i was initially of the power of sweet pea fragrance on a man's sensibilities, i am now a believer. Wear it when you plan to run into him.
Bury something on his property with your dried menstrual blood on it - a small piece of fabric, a cut-out from your panties, etc. Have it face your house or be in the pathway in line with your house while still on his property. If later you do not desire him, make well sure that you unearth this item and return it to your own home.
And while you're sneaking around at night burying things in people's yards, you can also bury a magnet (maybe at the same time as the blood). Take two magnets that attract to each other, fix them magically, put one of the magnets under your bed with the magnetic side facing towards his house (or roughly towards his house using your best judgment), and then bury the other magnet by his front door facing towards your house.
Sprinkle Come To Me or Kiss Me Now powder from his doorstep all the way to your house as you (preferably) walk or drive the course from his house to yours.
Using honey, glue a photo of you and a photo of him (can be photocopied from the internet) face to face. You can sprinkle herbs in the honey - you can do a whole lot with this to your taste: make a whole ritual, have it as a focus of ongoing work on your altar, burn candles over it, etc.
There's a whole lot of things you can do, since this is not an infrequent human desire. I trust that you are an adult, and are careful *not* to heed ethics advice regarding your sexuality and lifestyle choices from anonymous sources on the internet. Love yourself, be peaceful with others, and live your life to the fullest, with no regrets.