Just wanted to tap on the forum's collective wisdom here. I am an SC.
My EU citizen fiance was in Singapore for about 83 days from September to early December 2022. He was originally given a entry permit for 90 days. He was here to help me with my personal stuff and also to plan for our wedding which is scheduled for late Jan 2023. After the 83 days, he returned back home to spend Christmas with his family.
We are planning for him to return in mid Jan 2023, get married in late Jan 2023, and apply for LTVP right after (we already obtained PMLA).
However, my friend alerted me to the rule that says that Singaporeans are only allowed into the Schengen zone for 90 days within any 180 days, and suggested that I check that the reverse did not apply for foreigners coming to Singapore.
We contacted his Embassy, which replied: "According to the ICA, if one has stayed in Singapore for a full 90 days, the person cannot enter Singapore for the next 90 days. You were almost maxed out last time. You might wish to check with ICA how long you are able to stay for the next visit". I was not able to find any confirmation of this 90/180 days rule on ICA website.
I contacted ICA, who refused to say anything for certain and would only recommend that we prepare all the relevant documents to show our intention. They said the duration of his stay would be determined on the spot at Changi upon his arrival. We have since prepared a folder of documents (PMLA, ROM booking, even hotel bookings of our relatives who are flying in to attend the wedding to show our intention and financial commitment.)
My worry now is that ICA would deny him entry at Changi. They could cite the 90/180 rule, or accuse him of being some sort of visa runner to stay in Singapore for lengthy durations on STVP. Either that, or give him such a short entry permit (eg 7 days) which would not be enough to take him to our wedding day!
Would therefore like to ask:
a) From your experience/knowledge, does Singapore strictly apply the 90/180 day rule for EU nationals coming to SG?
b) What are the chances that he might be denied entry at customs given that we have (I think) a pretty legitimate reason and documents to prove it?
c) When filling in the SG arrival card, should we ask for 90 days or try to put less (eg 30 or 60 days) in order not to raise eyebrows?
d) Any advice on back up plans? My initial thoughts are:
Best case scenario is he is allowed in for 90 days, if not 60 days is also ok
Likely worse case scenario is that he is given entry of only 7 days (making it a total of 90 days within 180 days). In which case all is not lost, as I can sponsor him for STVP extension.
Nightmare scenario, when he is denied entry entirely - Don't know what to do except go to MP

I hope I understood SG immigration rules and didn't miss out anything after spending ages on ICA website and these forums. Any advice is appreciated. Thanks in advance!!!