Well, others have said things so much better than I can.
I was a bit of a loner when I was your age and usually only had a couple of close friends at any one stage of my life. I have "lots" of friends via FB - but really don't use FB much nor do I converse openly with folk that way. I also don't always get instant or PM'd messages from FB on my computer OR on my phone and other times have so many blips going on that it's totally annoying!!
I usually like the forums, especially this one. I still belong to several others - horse subjects, chickens and farming.
I have been slammed a lot for my type of beliefs with the horses over the years - on all subjects from breeding & foaling, to stallions, to training, to euthanasia and keeping ponies going longer with daily drugs vs not (most times we've opted for not - NOT always due to $$, tho, yes it is a consideration). Shoot even my way of hauling (trailering/horse floats) has often been a "hot topic" with some folks!
Personally, you develop your own beliefs as you mature and handle horses over a period of years and you will find that occasionally your beliefs and the way you do things will "evolve" (YES, change). Then your "horsey set" friends MAY change (either the people themselves OR their actual beliefs) - as you accept others' beliefs that are along the same lines as yours become OR as yours become different from your friends' (as it sounds like your situation now).
I'm sorry that your friends don't agree with your current beliefs and therefore are missing out when you want to share an incident that one day may also occur to them. I'm sorry that it makes you sad and lonely - that can be rough. It may be hard to accept, but in this situation, it may be time to become "quieter" yourself with these two (or at least less available, on a daily basis)... You will find that as your beliefs evolve and you both grow and change or just want to share your experiences, that it's much easier and less stressful over all, to do so with others that are "like minded".
Thankful you weren't more seriously injured and are on the mend. {{{hugs}}}
Have you seen the serious injury posted on FB that occurred on 7 July to a young woman? She goes into detail that it was an accident, happened with a well trained and seasoned horse when surprised and then detailed pics of her injury's development along with how it was treated. It was also a kick and happened to her upper right thigh and didn't break the skin. UGLY and eventually needed surgery for draining the hematoma. Quite surprising!