How Can she tell Him!!

I guess sometimes there are relationships that are just not meant to be!!
I have a friend who is crazy about this guy.
He is somewhat younger than her.
But she feels like they are kindred spirits.
Problem is He has a girlfriend and she has a boyfriend who she has been with for quite sometime!!

Now at the beginning of the year her and her fella were going through a bad time so she was a little drunk and a little stupid, she met this guy and they got on really well he made her, laugh paid her attention and most importantly made her feel good about herself which is something which was lacking in her own relationship.

Chelsea lets call her met him and found an instant connection with him, there was something about him and on new years eve could really feel this. We all noticed it too that he was paying more attention to her than anyone else, when the clock struck midnight he tried to kiss her but she turned away as of course her thoughts were with her boyfriend who wasn't there with her but to be honest never really is, for the rest of the night he paid her so much attention and she gave him her number to be honest at that point I think she was only looking at him as a friend although she did say to me that he was good looking but very young.

Now John we will call him he really is a nice genuine guy and I can see why she likes him!! as he reminds us of someone from her past, someone she loved very dearly, anyway to cut a long story short they got closer and end they did end up having for want of a better word an affair it was brief, now at this point he was single and not with anyone but obviously she was with someone and she came to her senses, and what made matters worse was that her friend also liked him and as he knew he could go further with her he decided he was going to date her.

Now so I am told by others that he still with this other girl but doesn't love her and he has admitted to a mutual friend that he Loves Chelsea, which has kind of messed her head up as she had got over him and now although he is with this girl he is paying her attention again, now she hasn't said but i know she really likes him, I would go as far to say she may even have fallen in Love with him, although she would never admit that to anyone, but she doesn't shut up about him.

I suppose the dilemma she faces is risks losing everything if she chooses him as it may not work, but I still think that they should be honest with each other and tell each other how they feel as everyone can see it and I think even his girlfriend is picking up on it although she would never let him go.

So i beg the question should she tell him !!!