will I ever be his soul mate? my date of birth is 13 5 1968

My dear friend has admitted his feelings for me but is still in a strictly platonic relationship. so his 10 year old son has both parents. I fully understand this and am prepared to wait for him. I'm just wondering will it happen now as his lade has been diagnosed with a brain tumour and he wants to support her. he is a lovely man, honest and caring. Thankyou
Beth