If she has a close natal Venus Pluto conjunction, her capacity to find beauty and value in herself and in the world around her (Venus) is going to work together with that Plutonian force for renewal and transformation. She won't be especially aware that these are two distinct functions as they are so closely entwined in her psyche. She may be obsessive about the things that she loves and values, and feeling the primitive and destructive power of Pluto moving within her, she may fear that others would find her unworthy and unlovable if they really knew her.
When she is around lots of people her own age, her expression of beauty, taste, affection, etc (or her inhibition in this area) may trigger the Pluto in others. Some might scapegoat her after projecting their own Plutonian drives onto her, and some might become very intrigued by her. And she might feel her Pluto energy more strongly around these people of her own age because they trigger it with theirs. So her inbuilt assumption that Venus interactions/experiences and Pluto issues go together will be reinforced. Those who have other planets in close aspect to their own Pluto, and thus her Venus and Pluto, are more likely engage with her Venus Pluto side (positively or negatively) and are more likely to attract her attention/love/fear.
She would need to own her power as consciously as possible, but also refrain from trying to manipulate others, in order to bring out the best of this aspect. She would need to disregard social values when exploring her feelings internally, but when deciding how to relate to others in the outer world she would need to be mindful of a possible ability/tendency to shock others. An intense relationship, getting into amateur dramatics, reading literature that is dramatic in some way, etc could serve as an outlet.
Ideally she would seek support from some kind of therapist - or teacher with a pastoral role - or anyone who could help her navigate any issues that arise. It can be difficult aspect, especially for an adolescent girl. The house placement of the conjunction should be considered carefully.
Best wishes
Miquar