Ancestry DNA is finding me cousins

So a couple of days ago I went on ancestry.com and clicked on my DNA.  When I checked my matches, I see that there is a new match and it is right at the top of the list.  The match also gives a possible range of 1st -2nd cousins, which is the closest relation I have seen so far.  I think it is at the top of the list, because it appears that the closer the relationship, the higher the hit is on the list.  When I tried to view the match, there is no family tree connected to this account.  So I was able to contact this person through ancestry.com, and I requested that he either contact me or put his tree on line so that I can figure out how we are related.  The match also tells you when this person last logged on to his ancestry account, which was June 21, 2015.  So far, I have not received a response.

So tonight, I went on ancestry.com to  see if there is a response from my first e mail and I found that there is none.  That's when I noticed that one of the matches, that I have seen before, has a shared ancestor hint, which I did not know the meaning of before.  I had some time and decided to click on this match, then I saw the shaky leaf next to the match.  When I clicked on the match, our shared ancestor is revealed.  Her name is Bridget Kelly - Who?  Then it shows how Bridget is related to each of us.  Bridget had two daughters Mary Jane Reilly and Anna Forkin.  Mary Jane is my great grandmother on my dad's side, and I recall seeing the name Bridget Kelly on her death certificate, listed as mother.  So Bridget is my 2nd great grandmother.  I am not quite sure, but it looks like Anna Forkin is the grandmother of the person whose DNA had certain matches to mine.  The match says that this person last logged onto ancestry.com today.  So I sent him a message through ancestry and I will be awaiting a response and hopefully some more info on my dad's side, which I could always use.

You know, the more I look at the tree attached to this match, the more questions I have.  This does not look like a match to me, at least not through Bridget Kelly.  Maybe there is someone else in the tree who is a distant common relative.  If the match is through Bridget Kelly, I think we are 2nd cousins, but the initial match says we are distant cousins, like 6th to 8th cousins.  So we shall see what we shall see, but I am starting to think that Bridget Kelly is more of a common name than a common relative - but I have been wrong before.  So let's hope I am wrong again.

Waiting for an answer, as usual.