How goes things with you and Mr. School Buddy? Very well and still going strong and happy, I hope.
I understand why you are having difficulty letting him into your heart. You've been through quite a bit in the relationship department shown by your Saturn squaring your Neptune, not too far from your Sun/Mercury, and your Saturn squares his Moon so it makes sense that you are putting the brakes on the passionate expression of his feelings for you by trying to keep things on the friendship level as long as you can. And I suspect that with Saturn squaring his Sun and opposing his Mars, and with Neptune also squaring his Mars, he's had his share of heartbreak and disappointment in his life too
and would do well to take things slow too.
There is a lot of great energy in your charts - the conjuncting Scorpio Suns, the conjuncting Venuses in Scorpio and the trining Marses in fire. You both have another valuable asset and that's Pluto sextiles your Suns (and your Mercury) so that which has not destroyed your spirits has made you stronger. When you feel ready, you'll be able to embrace all the deep love and sizzling passion your two charts promise is waiting for you.
But in the meantime, please do go as slow as you feel you need to and most importantly, listen to your intuition along the way. With all that Scorpio in you (and him too) you'll never go wrong doing that.
Please do continue to pop in with an update and know that I am here routing for you.