I have got a new horse and now my other horse doesnt like to be around people anymore what do i do?HELP!!?

Answers:
No matter how nice of an owner you are, you are a person and will never fill the position of another herd member to your horses. Your old horse now has a new buddy, and therefore won't need you as much, and in some ways that's a good thing. You probably spend an hour or so outside with your horse, but now that your horse has a friend he won't have to be alone 23 hours a day. Horses together are much more contented and happy than a horse alone.
You can still have a good relationship with your horse, even if he has a horse buddy. Try to spend some time just hanging out with your horse, not necessarily riding or working him every moment, but just grooming him, or taking him out to the lawn to graze while you stand nearby. Give him a massage. Go out and catch him now and then, give him a treat or two and don't ride. Small things like that make you a friend, not just a boss who puts him to work.
Continue to ride and work your horse regularily. Have a routine so your horse knows what to expect - tie him in a certain place, groom him a certain way, etc. Horses like routine, and when you're trying to bond with him a good routine is helpful. (Don't get me wrong - it won't hurt your horse to do new things, its just he will feel more relaxed in a routine)
That's about all I can suggest. You didn't specify if your horse is actually behaving badly, or just less friendly than he used to be. You didn't mention if he neighs or fusses when his horse friend isn't nearby. You didn't say if he's suddenly become hard to catch. Those things can all happen if your horse is herd bound, and there is things you can do to help. But for now I've just given the real basics.
Good luck with your two horses!

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can you specify it a bit more? Like how does he react when he sees people? Is he aggressive or shy? Give me the lowdown on a typical day.

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agree, need more details...

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I dont get it. What are you trying to ask?

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It's pasture love. Seperate them to show it's okay to be apart.

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Need more info but it sounds like they're getting "herd bound". If he used to be an only horse, you were his "herd" and now he has a real horse to herd with. Try reasserting yourself as part of the herd.