Love or Lust

The young boy who I knew has now grown into a young man. I have grown attached to him like bees to honey. I think that I love him, but how can I be sure? How do you know if you are in love or if you're just lost in love. Love is a very scary word, and at the same time its a good word and makes you fell good that you are loved by a guy.
Does anyone know what I am going through there is two guys in my life. I love them both. But I don't know which one I like more and would rather be with. Would you pick the guy that you have known all of your life and who you played with when you were little. He makes you smile and you fell comfortable and open around him. Or would you pick the guy who you have known about a couple of months. Hes cute and funny. hes sexy and always makes you smile when you are felling down. But he also wants to be with you when you are older, and have kids. He is always hitting on you and it makes you fell really good, But the other guy is also kind of like the second guy. They are very similar. I dont know which one to pick.The twist is that the first guy taught you how to kiss and I wouldnt have ever kissed the second guy if I wasnt taught. I would have been too scared or shy. It will always remain an undecided mystery since I will never be able to pick. ???MAYBE I DON'T HAVE TO PICK????