Furthermore...
Her sun is conjunct his south node!
Her mars is trine his sun which shows attraction and he may well be attracted to her too.
Mercury is opposite one another which is not bad also. Venus is trine mars which is great. Her venus on his 7th shows the ideal partner image along with his sun and mercury conjunct her ascendant.
Overall it looks good.
Looking at the composite chart is even better.
Transit pluto is trine VENUS in the composite chart.
Transit neptune is trine the sun and moon! All that points to something that could definitely take off and become something. IF not it could show a very long term friendship.
Keeping in mind venus rules the 3rd house. SO it shows the start of communication but not yet the start of a relationship.
Sun and moon rule the 1st and 12th house. 1st house represents the chart as whole and the 12th house is obviously the house of secrets. Are they secretly (3rd house) talking or is it yet unknown (12th house) to other poeple of their relationship/ friendship?
The transits of neptune show the possibility of it being not only platonic but also kept hidden along with composite transits to 12th.