Yes of course but it probably will be slightly different each time. You can also love in so many different ways all at the same time. I love my family, but I love my friends too, and I love my cats, etc. I would not want to have to choose one over the other ever. You can love your spouse, but you love your kids too but not in the same kind of way. And often what you thought was undying love when you were 15, now from your far more worldly position you can see it was infatuation, or as they used to call it "puppy love." I do think that people who claim they can only love once have small hearts indeed. You might have one long-lasting love, but you ought to also have room in your heart for other loves too.