Angry? no. Bored of you and your bone questions, yes.
Your mate in the TA should be bright enough to take his or her medication and to speak with the MO about it. Hypertension, if treated properly (and controllable) won't normally mean being discharged.
You sure its not you?
when you are at your initial medical you are a civvy. the army is not likely to take you on just so it can pay your medical bills. there is no reason they should take the risk
when you have been in a while, the army has trained you, spent money on you, and to an extent needs you as you are now skilled at a job. not to mention there is often a good chance that your condition was brought about or made worse by your duties and PT in the army.
therfore, it is a)cheaper to fix you than boot you and train somebody else and b) only fair seen as if they broke you they should have a jolly good crack at fixing you.
I would suggest you approach your prospective unit with these questions, not to this forum. If it is the case you are asking on behalf of someone else, they need to approach their unit.
The answers that you may get here are not finite and will most definitely be different to the ones that come from the unit involved.
I mirror some of the sentiment displayed by'theoriginalphantom', why are you asking so many questions aimed at medical fitness? One would be forgiven in thinking there was something suspect about your motives.