Are you looking to go somewhere other than Dublin? What sort of things are you looking for?
Certainly, the Wild Atlantic Way can be romantic for a honeymoon. But more like romantic ocean walks and little pubs, than lots of night life. If you are going there, fly in to Shannon instead. Much more navigable airport, and you can be out and on your way very quickly.
When you say "stay outside of Dublin," it's not going to be like the US. Do not expect to drive in from elsewhere to the City Center. It's not the worst in Europe, but it's more inconvenient than it's worth. Stay somewhere on a train line, and use the DART or LUAS to move around. Busses aren't bad for access, but are much slower.
You will need to get a ride to and from the airport. A taxi is most common. There are bus routes there, with luggage racks. Again, they are slower, but can be a bit of a free tour on the way in, particularly if you can grab the front row up top.
In the Dublin area:
We had a lovely AirBnB in Ranheny, next to St. Anne's Park. Lots to do there for breaks from the city, and concerts in the summer. On the DART.
We used to live between Ranelagh and Dundrum. They are more suburban, but with plenty of restaurants, parks, and groceries convenient. On the LUAS route in.
We used to visit Bray quite often. Lovely seashore with a pebble beach, local attractions, and bluff walking. Quite a bit longer into the City Center, but not as isolated.
A splurge place to stay, if you don't want City Center / parties, could be Powerscourt. We loved going there, but it's more isolated. $$$ for a cab that far, although bus lines go there, as it is a tourist stop. Lots of biking around there on the weekend.
Just a few ideas. Tons around, of course. You're a little early for the Dalkey Book Festival, and Bloomsday. Be aware of the bank holiday May 6--lots of businesses will be closed. Also, life will go faster if you have a credit card that you can tap to pay.