Wendy, I'm sorry to read about your high school boyfriend. It's difficult when you hear such news and then to have an old friend make insensitive remarks about the person.
I'm glad you have arrived back home safe and sound, but very sorry to hear your caught the flu bug. I hope you are feeling better soon.
As for the guy you are dating, just go w/the flow and enjoy his company. The age difference doesn't make a whole lot of difference these days. In my area, younger men have been hooking up w/women 12-15 years older than them and they are enjoying life to the fullest. Don't worry about the age difference.
Take care and I hope you feel better soon.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.