あって = meet and
はなした = speak
ほうが、 = (one option)
きもちがつたわる = feelings are communicated
"It's easier to get feelings across in person"
なんとなく、 = somehow
そばで = beside
はなしをしたい = want to speak
とおもう = I think
"I'd rather talk about this face to face, but I can't really explain why I feel like that"
Sounds like it has great potential for "doronuma" (an unpleasant swamp that's difficult to get out of). If she can't express her feelings clearly, she probably isn't thinking very clearly. Sounds like she doesn't know what she wants, but is keeping her options open. The reasons are likely to be (a) typical Japanese "doesn't want to speak clearly due to fear of giving offense", or (b) "is a fuzzy thinker who has problems with self-denial, and wants to have her cake and eat it too without regard for the problems that might cause others".
If you go in, go in with low expectations and a clear escape route.