Is he no longer interested in me?

Saying he works in "international development" is a bit vague. It can cover anything from NGOs to UN, WHO, or big corporations. It could involve a wide range of different kinds of training and experience.

Did he ever specify exactly who he works for, where and what project he's on right now? Did he ever tell you his educational background and how he got into his current work?

If his work has a link to the Ukraine, then yes, you could safely assume that he is genuinely busy managing a crisis.

If he never specified, then it might mean he created a gateway for both easy exit and keeping you on hold.

Enthusiasms are common in the beginnings of relationships. It's also possible that showing enthusiasm could be part of a ruse to hook someone.

The only thing I can suggest is to be ultra cautious with any relationship that starts online. Trust nothing till you see the proof in real life.

On balance, I'd say its not working out for him and its over. If he wants to do it, he'll find time, not make excuses.

I could also hazard a guess that he is a player and has moved on to someone else.

I'd believe him. Of all the excuses one could choose to use, the Ukrainian conflict is quite a choice to make...

Its not uncommon for INFJ's to bond with you then pull away. Unfortunately.

If I were you I’d be cool. Take some of the pressure off yourself and if it fades away, kiss it goodbye. Or you could ask him straight up. Have you met yet?

Id say it sounds like an excuse and if I were you I'd stop putting in the effort. Sounds like he might have something else going on

Sounds like an internet relationship. Walk away. None of those are real... no matter how much it seems to be 😒

This is a big red flag. He is testing you to see how much he can get away with. Let him go.

Red flags. I feel like he may be married. Also the people I have come across with that personality trait will suck the life from you.