To be confused why DP didn’t tell me he had a drink with our neighbour?

[MellowSar]

This may be me over thinking things but I’d welcome a second view.

My DP had a night out on Saturday and got home just after midnight. Yesterday, I saw one of our neighbours, a lady who lives across the street and she said hello and that my DP was a bit merry on Saturday and did he have a sore head the next day. I was in a rush and said he was a bit groggy.

When DP got home from work, I relayed her comments and he casually said ‘oh yeah, I bumped into her just as I was about to get a taxi so we shared one to split the cost and she invited me in for a night cap’.

AIBU to feel confused why he didn’t tell me about this himself? It’s not a neighbour we have socialised with before beyond pleasantries in the street!

Bit aggressive to tell the woman to "stay the hell away" from her husband.

She hasn't done anything wrong -the she invited him in for a nightcap is his side of the story and he hasn't exactly indicated his honesty - perhaps he invited himself in! She might have said "tell your wife to come over as well" and he said no. Or said "shall we go to yours" and he said no my wife has an early shift or whatever.

Even if she invited him that's not the same as wanting anything to happen. She wouldn't have mentioned it to OP if she had anything to hide, from what she said she obviously assumed he had told OP.

Just because she's single doesn't mean she has any designs on him. She could be gay, or just uninterested in wanting a relationship, or just not fancy him specifically. Not everyone thinks about sex all the time. She just wanted to save money on a taxi! From her pov she would have done exactly the same if she'd seen OP out in town.

Single women aren't all out to steal your bloke, ffs.

OP will just make herself look like a possessive weirdo if she goes around shouting "hands off my man you slaaaag" like they're in eastenders.

Oof yeah I wouldn't be very happy about this. It's the secrecy that would bother me more than anything.

The drinking wouldn't bother me. The lying by omission would.

No, we have no way of knowing. But i personally prefer to think well of other women until proven otherwise. I've personally never had cause to go through life viewing every attractive single woman as a threat and a rival. It's a sad and insecure sort of attitude to feel every other woman might steal your man.