Have you seen the most detailed copy of the wedding record? Ballyboley townland is the neighbouring inland townland to the east of the famous MountStewart tourist attraction within Greyabbey civil parish.
In Griffiths valuation
http://www.askaboutireland.ie/griffith-valuation/living in Ballyboley in 1863 are
Adams David Ballyboley Grey Abbey Down
Adams Mary Cardy Grey Abbey Down
Adams William Ballyblack Grey Abbey Down
Adams William Black Abbey Grey Abbey Down
David Adams in Ballyboley appears to be sharing 39 acres and has a good house in 1863 see the boundaries of the property on
http://www.askaboutireland.ie/griffith-valuationThe churches within Greyabbey have comparatively good surviving records see
http://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/ under churches and then under Greyabbey
http://www.proni.gov.uk/guide_to_church_records.pdf and also see
GREYABBEY, CO. DOWN Proni has an online Guide hers an extract to before 1866
C.I. Greyabbey (Down diocese)
Baptisms, 1807-1994; marriages, 1807-1935; burials,1807-73; vestry minutes, 1789-1823; preachers’ book,1849-70 Map of graveyard with key to burials, 1857.Indexes to baptisms, 1807-15 and 1820-1900, to marriages, 1807-1927, and to burials, 1808-73.MIC1/48-49: T/2688/1 T/1619 In local custody CR/1/98; Copy on shelves in MicrofilmRoom
N.S.P. Greyabbey
Baptisms, 1835-40 and 1848-1988; marriages, 1835-43and 1845-1935;; list of families, 1835-6 and 1839. MIC1B/9
P. Greyabbey Baptisms, 1873-1932; marriages, 1845-1936;
register of pews, c.1850; pew rent book, 1863-78; Baptisms, 1835-40; marriages, 1835-42; lists of families,1835-54.MIC1P/323 MIC1P/230/6/1-2 In Presbyterian Historical Society
Using
http://www.askaboutireland.ie/griffith-valuation John Loughlin of Cherryvalley had 28 acres house office and land so I assume a small farmer, the house is above modest at £1.10 shillings as there are several others in the townland at10 shillings at map ref 16 in Cherryvalley.. It is south east of Cherryvalley house map ref 15, which was destroyed by fire 1890 so unless rebuilt in same style it doesnt appear similar to me via Google satellite view. However this map shows a John Laughlin’s house and organized garden set in about 5 fields. Compare that to Google satellite view and it would appear to me the building is still there.
You can find out when he moved from the property by going to PRONI which has a section on valuations continued nearer to the present day
Finding more about John Loughlin of Cherryvalley,Comber, The marriage details might include witnesses. Around 1823-37 the irish applotment records were made. These are not on line , only available by visiting PRONI but would help establish or otherwise keep in question the family roots. Look at Comber Historical Society's website and ask for help. {my historical directory doesn't help you} Someone local might know much more. I would exhaust PRONI resources. I have run out of time JimG