and even though I do like and care about her alot, I don't want to get involved in something I'll regret later.
Then I suggest you distance yourself from her because whatever you get into with her while she's still with her boyfriend, you will indeed regret later. If she's "leaving in three months" why are you even bothering with this snuggly crap?
Next time she snuggles up ask her WTF her deal is doing that when she's in a relationship. I wonder how you'd feel if she were your girlfriend and she was snuggling up to another guy like that?
Skank meter: 7 on a scale of 10. (at this point) and that's not just on her.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion