Loved experience advice needed: Do you have to be single to be more successful or just bs social media targeting.

To give some context, my (26F) (now ex) partner (27M) of 2 years recently moved to a different state for mining work. Incredibly proud of him for making such a big move!
Before he left, things were pretty normal and a but up in the air at the same time because of the unpredictability of this new job. Within two weeks of getting there, he slowly started communicating less and essentially stopped caring. He’d be fine with going 2-3 days if no communication at all because “he’s busy”. I get that mining work is hard, putting in 12 hours a day for 7/14 days straight. But a text here and there or a 5 minute catch up call isn’t asking too much, just to keep the lines open, you know.

I basically made him make time to call me to see where his head’s at with us and he said he’s not feeling it anymore. I was a bit blindsided and heartbroken. We spoke about it again a few days after that because I needed him to help me understand his reasoning.

Apparently, the guys he work with said that long distance relationships don’t work out, it’s too much work, it holds you back from success, he’s too young and is in his prime and shouldn’t settle down or be tied down to anyone blah blah blah.

He says he needs to focus solely on his goals and being successful. Wanting to get his niece and nephew through uni one day and his family their own home and stuff like that. Very admirable, I think that’s a goal for a lot of people so I can relate to that.

He says this “tunnel vision for success mindset” he has is all he needs right now and he can’t lose focus etc. I told him this mindset is good and motivating but as humans, that drive to be successful won’t solely satisfy him in the long run because he’ll want to be with someone eventually, preferably me. He’s adamant he won’t feel like that because his mind is on success and money and what the guys at work has experienced.

He also watches and looks up to these motivational speakers on instagram reels about “don’t let anything stand in your way” and “you only need yourself to get where you need to be” and “stand out from the average man and make your life what you want it to be”.
A lot of cherry picking, targeting and controlled media type of stuff, imo.

He says when he’s ready for a relationship again, it’ll be me or no one at all but can’t say when that’ll happen. So I’m not particularly waiting for him in that sense but I am hoping that his heart will miss me enough to make him realise he can have both a successful career and a partner.
He suddenly doesn’t want kids at all or be tied to one city/country. Because that’ll hold him back from being the best he can be. That’s not a deal breaker for me as I can go anywhere in the world with my degrees. But this is what he’s hearing from colleagues and the videos and stuff like that. I can’t help but think he’s being heavily influenced in that aspect of saying “I only need myself and maybe two good friends” to be successful and reaching his goals of financial independence or whatever he wants to call it.

I respect his decision even though I personally don’t agree with his reasoning but that how we left things. Agree to disagree, as you do when things end.

The reason for my post is I need advice / different perspectives or experiences from people who’s been in this situation on either side and how well did that work out?

Do you regret giving up your relationship to focus only on your goal and listen to other people and in hindsight, could you have had both? Did you miss that person and rekindle with them or did you just move on?
Or was it the best decision you’ve made and didn’t regret losing that person?

Assuming you had a pretty good relationship with the normal ups and downs etc.

English isn’t my first language so apologies for any editing/spelling errors.