It really depends. I'll be honest, Mr G blurted out his feelings very early on - about six weeks after we first started chatting. I guess the whole dynamics of our situation lends itself to fast forwarding a bit. It freaked me out a bit and I pretended I didn't hear him 
But his actions remained respectful and guided entirely by my place/comfort level. I spoke to him on the phone after that night () and said I wasn't ready to return the sentiment and I was worried how that would make him feel, would things be awkward, etc. He said his feelings weren't dependent on my reciprocation, and he wouldn't say it again until I was ready. (He actually blurted it out again the last time we were together but I was ready to say it back so that was nice)
I think he is just the sort of person who is comfortable with himself, knows himself, and isn't afraid to express his emotions. I have been very observant of his behaviour and checked in a few times with my friends to get their pov, and the prevailing view was that he wasn't love bombing, he just sorta fell head over heels. I never expected it, I still don't really know what to do with that, the responsibility of someone else's feelings is quite overwhelming, but I just take it one day at a time and enjoy being with someone who is smitten with me. He's a good man, and I'm happy. I try to remain cautious in many respects, but we can't really know anyone fully, can we? Relationships are a bit of a gamble.
@bangheadhere40 I'd keep a close eye on his behaviour, let some trusted friends know what's going on, and see what happens.