Colleague become cold

[Horseyclop]

I have a colleague with whom I have some chemistry. Nothing extreme, just similar sense of humour and (On my side at least) a small attraction. We are both married with DC.
Not a remote chance of anything happening due to loving partners, but was just one of those things you notice.
Recently we had a particularly bad experience with a client, that was so awful all we could do was joke about it. It was quite bonding to laugh about it over the days it happened.
I’ve come me back to work after two days to stoniness from colleague. He did not say hello when o bumped into him. He’s also informed me that all meetings we’ve had previously booked must now be via phone even though we are in the same building.
Obviously I am fine with this, but perhaps feeling a bit exposed. Do you think I laughed too hard at the jokes and my attraction was obvious? I feel embarrassed and I don’t know why.

How silly. It’s not as if you threw yourself at him - you liked him and had a laugh with him - it’s not a crime. It’s perfectly natural to bond with people you work with - it doesn’t mean you’re going to have a torrid affair.
It’s possible I guess that he was developing feelings for you and is trying to reduce contact to nip them in the bud.
I really wouldn’t worry about it - just carry on doing your job and take no notice.

Sounds like he’s worried about his attraction to you, which he’s entitled to do. Nothing you can do except go along with it.

I really doubt it unless it was a lot more than you're saying. My first thought would be that he thinks you have done or said something about him/ reported him about something. Maybe he got in trouble over the client incident?

Maybe he feels it's inappropriate to keep interacting with someone on a friendly level, who he has chemistry with, since he has a partner and so is taking a step back.

He is doing the right thing. Maybe he fancies you, maybe he has now noticed you fancy him. And is backing away .

Do you contact eachother outside work?

He fancies you and now trying not to overstep the mark. Perhaps jealous you've been on a jolly with your other half?

Did you make your feelings obvious, or did you spill to anyone about it?

Whatever the case, just go with the change and find a convenient time to talk about his new mood.

There could be 100 reasons but I guarantee whichever one it is, is valid.
Accept it. The fact you’re posting here about it shows you have an unhealthy interest in him.

This happens on a regular basis between a colleague and I . Both in committed relationships but possibly get along a little too well and at times there can be a ‘ moment’ so without ever acknowledging it, we detach a bit and keep away from eachother in the office/ messaging etc for a few days to let things settle. I’ve learned to accept it and deal with it this way as neither of us want to leave our jobs so we manage it by pretending it isnt an issue .

He's opted to detach before it gets out of hand. Or maybe it's been noticed at work and someone has talked to him about it. Or maybe he's spoken to his wife about it (intuitively, she may have had concerns) and they've decided that he should reduce contact. Anyway, it's for the best.

I suspect his wife noticed he had mentionitis and they talked about it.
Perhaps they have been down this road before and you’re not the first one