One thing I’ve really learned about love this week. You got it… it overflows.
As John put it so succinctly, “We love because He first loved us.”
It’s so true. When you realize how much you are loved, love kind of fills you up and bubbles out the top. The ability to love people around you comes from the knowledge of how much you are loved at the moment. I am so thankful for all of the people in my life right now who love me and help me love back. But I’m thankful to Jesus most of all, for teaching me to see how much He has always loved me. This more than anything has enabled me to love, Him and others. I want to stop trying and just let the love overflow. 
I’m continuously amazed by the feeling that you describe – and the ability of it to last for so long.
Got your message…am going to write you back soon, but been busy…will leave it all to be said in my reply to you! much love!