Hmm. I'm not sure what you mean by "support" her. If you mean that she wants to talk about it, I would follow her lead. If you mean physical transportation so they can see each other from time to time, also great. If you mean that you'll always be present or very close by when the two of them are together, well, not so great.
I'm with MoN in letting the two of them handle it. IMO, and provided there's nothing damaging going on (which definitely seems to be the case here) kids need their own space to figure these things out for themselves.
