Tough decision to make... can you help?

hi there, ive 2 been in similar situation and it is difficult, what i found helped me was to stand back from all parties concerned to give myself and those time to reflect the situation and let emotions , feelings come to a calm , sometimes these situations arise n we have no control but to sit back n let them happen , and with being in the middle so to speak - is hardest ,keep an open mind with all concerned and as your as close as u say u are - all will come good in the end as they will appreciate ur friendship - just sit tight ,, best of luck to u