Feelings, what are they? To a large part they're chemicals and hormones, mixed in with mental and emotional notes. Spiritual too, it's all related. Flesh-wise, it's an addiction. Your body produces certain chemicals/hormones in response to stimuli others give you. If it's good stimuli then you get the goody chems and 'mones. But like any drug your body will then build up a tolerance to it, so you don't notice it so much any more even tho (if?) it's still there. So then that person leaves, and there are huge holes in your system - you don't get the interaction, you don't get the stimulation, so your body stops producing these things and you go into withdrawal. That's one reason so many turn to drugs (alcohol being one of them) after a big breakup. They've had a chemical withdrawal and need another chemical to supposedly take it's place. Too bad that doesn't actually work
My wife and I, we dated and lived together for 4 years. Nasty breakup and withdrawals, but we went on to have other girl and boyfriends. They came and withdrew as well, but we remained friends thru it all. After 8 years of that we realized that it's not the passionate do or die relationships that last, it's the steady trudge thru the mud ones that do. The ones that you can let go of and they're still there. Honestly, if I learned one big lesson from it all it's that passionate love (and it's many cousins) makes you stupid.
If it's meant to be it's going to be, lest our fretting get in the way. Take a deep breath and resume the path God has for you. 'Cause you never know what paths might re-intersect, unless you go burning bridges.
Sorry, I shouldn't be in the singles forum but you came up under new posts.