@needmoresleep1
I'd go... if I had nothing else on.
If the invitation was a few days before.
Bet you can't beat THIS though.
We moved into No 17 in our street... (some 7-8 years back.) Our neighbour at No 19 was Laura, and our neighbours at No 15, were Ann and John.
Laura at No 19 was having a party for her DS who was 9. We were not invited, but Laura came round to ask us to it, an HOUR into it.
We were having our evening meal at the table, and had the news on the TV, and she knocked on the door. DH answered and the neighbour said 'you wanna come to our party?'
She had been prattling on about it for about a month, and around 40 people were invited, including about a dozen neighbours, but we had not been invited. IMO it was because she was jealous of how well me and DH got on with our other neighbours Ann and John (at No 15.)
When Ann at No 15 said (in front of Laura at No 19,) that she loved us as neighbours, and asked us round for coffee once or twice a month, Laura at No 19 (with the 9 y.o.boy) was seething and went very red. I presented no threat, but she didn't like me, and often left me (and DH and our kids) out when she was arranging something.
Long story short, Ann at No 15, asked her several times (at the DS's 9th birthday party,) why we weren't there. (Especially as we had taken a card and gift round for her DS the day before.) So 'Laura' felt obliged to come ask us - an hour INTO the party.
DH came into the dining room and said 'do you wanna go?' I said 'no I bloody don't. Who asks someone to come to a party, an hour into it?!'
'Afterthought much?' (Our kids didn't want to go either.)
Don't know if she heard and don't care. But DH went back to the door and said 'nah it's too late in the day now sorry. We are having dinner, and have plans for the evening.' She looked embarrassed, and slunk off...
When Ann at No 15 asked me (a few days later,) why we didn't come, I was honest. I said we were not invited, and we weren't coming after being asked an HOUR into the party. She was gobsmacked, as she thought we had been invited a few weeks before, and just hadn't turned up.
Not long after - Laura and her DS did a moonlight flit, owing £3000 rent! Never seen or heard of again!