This is what I like to call authentic love bombing and I think comes out in a generally healthy LTR. You can't fake how you feel when you're in this state. Just a few minutes ago my partner yells out in the house, "I love you Tom" for no reason other than to love bomb me, and I'm pleasantly blown to pieces. :)

That said, the hardest thing we can do is to truly love ourselves and be happy. I've learned that the trick to building self-esteem is 1) know that 99% of everyone else is suffering from feeling "not good enough" and 2) small wins can be built on.

Keep going, it will get better!