Do you ever just feel like giving up on a loved one?

Yes!
And I have given up a few times before. Sometimes it's just not worth your suffering, when you've already had too much of it! If they can't realize they're hurting you then they don't deserve you!

I want to, but I can't. Whenever I think I move on or let the person go, he comes back and that sweetness just keeps me back. And yes now I'm having that particular guy in my mind, exactly at this moment I feel I can't go like this anymore and I need to tell him bye forever but I just can't. There's still some confusion and mystery between us that needs to be solved. :/

yes I ahve but you have to think of what it will be like when there acually gone.

I always feel like giving up because I feel like they will never change. They say they will try and never plan to start. But keep on with them try to keep them on the right path and stay with them. One day they will change. They can't change al in one day. So don't give up, keep trying if you give up, you will show them that they will never make it.

ive never wanted to give up on any boyfriend I've had but friends I have and I love them so much but it seems like are friendships ae one sided and right now I'm at breaking point with my friend and really feel like giving up on us being friends

sure, you'll eventually feel like you want to give up and that the relationship is sort of one sided, but if you love the person and they say that they're willing to try then speak to them about it and let them know how you feel, that's the only way to move on!
if you love the person, then you owe it to them to give them a chance to clear things up and see if the relationship is worth saving!
but if there was love there once upon a time, the person should be open to dialogue, I mean love doesn't just disappear!
Best of Luck!

Dude, over the past two days I've seen your questions so all I have to say is quit freaking out! Your girlfriend is being distant, I understand, but it doesn't mean that she is going to break up with you, maybe she actually has been busy. You need to calm down and let this play out. The way you've been acting is only going to hurt things, so just let her deal with whatever is going on because at this point you're staring down 4 roads. Road 1 you keep pushing her and being clingy so she breaks up with you. Road 2 You don't push her, she's just going through some things now, it will be fine eventually. Road 3 You give up on her and your relationship ends when nothing bad was happening. Finally Road 4 is she is being distant because things aren't gonna work out between you two and she knows it. The odds aren't in your favor but if you just act normal you stand a lot better chance than you do with the way your acting now.