I was diagnosed 5yrs ago and got it from oral sex as well. I can tell you the outbreaks do get better, but they are definitely the worst at first and may take a while to build up the immunity. I did go on daily suppressive therapy, which has made a world of difference.
You should most definitely tell the guy you think gave it to you, if for no other reason, but so he knows and hopefully is responsible enough to disclose it in the future. Your friendship won't be "hey you gave me herpes" you might even be better friends afterwards.
As for who you tell, only you can decide for yourself. The reality is the more people you tell, the more you can expect will know and if you are ok with that then you will be fine, if you are not ok with that idea, then I wouldn't share at time, you will get to the point where you are ok with this fact (if you aren't already). The reality is your life is not going to end and with time it will weigh less and less on your heart and you will realize it is really not that big of a deal.
As for at home remedies, I agree and do like Tea Tree oil as it is a natural anti-viral and anti-bacterial, but mostly it relieves some of the pain associated with open sores. However, like I said, I have been on daily suppressive therapy, which has been the best remedy so far.
My advice is to be strong, don't look down on yourself, regardless of how you feel now, this is really not that major! And certainly don't think somebody will never love you because if they define you by having herpes, they really weren't worth having and you will find someone better!!