You're both going to have to be willing to learn some good communication skills and there's some very good videos on that out there, by Carl Jung. No use being unhappy. If one has a short temper or lashes out before thinking, these things must be addressed. They won't go away.

Both of my long-term relationships have been with women that had personalities, interests, skills different than mine. I sought partners that would complement me in those areas; make us whole at a team (and I believe they did the same). So there was not much to handle. We appreciated what each of us brought to our partnership.

Tons.

He's extrovert, I'm introvert.
He has a child, I'm child free.
He grew up with money, I was poor.
He's got two degrees and a Masters, I have only a two year college education.
He's got a very close, supportive family, I have no one except for one brother in Tennessee.

At least we both have the same political leanings. I couldn't be with a Trumper. 🤮

Talk it out. Communication is the foundation of any relationship.

If something is bothering you, mention it. You both need to be in a mental space where you can bring things up, without the other being defensive or aggressive. If that happens, the relationship is already dead.

You don't have to agree with each other, but you do have to try and understand where you are both coming from.

I feel like that was the case for every relationship I've been in. Being younger I think I was just happy in the moment to be with someone. Getting older that feeling of not being able to connect to the person I was supposed to be with could make me feel more lonely than if I was actually alone.

Without any idea exactly what you're going through I share the following and wish you both the best of luck.

https://www.brucemuzik.com/

He has many modem ways couples can use to come together and be better partners to each other.

We got a divorce. 4 years later after 7 years of separation and divorce my son and me live with her in separate rooms and no sex and she still seems to yell at me sometimes. It’s kinda like when we were married! We lived together for 2 years before we got married, lived 25 years together married and so far we lived 4 or 5 years together after we divorced.
That is weird right?

Yes, a lot of differences.
Yes, a big impact on my happiness.
I don't handle it. I deal with it one day at a time.

We've been together past the two decade mark and are heading into our third decade together. The biggest thing is compromise with each other.

We have a lot of differences. For example, they love modern tech and I don't want it in my house. I refuse to own a cellphone. For one thing, I can't stand them, and they don't even work well out here in the boonies/farmland.

I love old television shows and movies and want to live more like an Amish/Mennonite/German Baptist lifestyle. My partner appreciates some of the old ways but doesn't embrace them as fully as I do.

You see, we learn to adjust and adapt for each other. It's not about one forcing their will on the other, but about living together as one unit — as a team.

No. Though I think my last relationship there were a lot of differences and, maybe it's just me but, it didn't end too well for me. Of course, this was about four years ago.

I was married for almost ten years before my wife left me. I'm not in a relationship now, but we had many differences and many similarities.

If It’s like that and conversation doesn’t help then I leave. Life is too short to be unhappy.

A couple does not have to agree on everything, but they must agree on a small number core values/principles.

If they don't agree on this handful of core values, then the sooner they part ways, the better they will be.

Yes and the differences are unsustainable, that’s why we are going separate ways.

Am I ever! We were very set in our ways, pushing 40, different languages, different cultures, different continents, different national strategic alliances... same God though, which I credit as the equalizer

Our relationship has often been like one of those venn diagrams. I have my stuff, she has her stuff, we have our stuff.

Any relationship can be successful if you have the 3C's, Communication, Commitment and Compromise.

By keeping it to ourselves and not involve anyone else.

Remember your individual goal when joining. If you really need that relationship in a short term, suck it up, compromise.

Not so much differences but no connection anymore

Yes. Has its pros and cons.

Mostly, just smile and nod.

Years of marriage counseling had no effect .. divorce underway

Difference would be their ..it's how you bridge the gaps

I don't so much look at being the same or not as how the fitting together is

If one likes this and the other that, sometimes that just means they share different parts of what comes together and it's perfect

Many things are like this

I'm cuddly and affectionate, so I need a woman who is also, this needs to be the same

However, I'm dominant and I take charge and lead, if a woman also was trying to lead then we would have conflict, so what I look for then is a woman that wants leadership and a loving gentle direction for life

It's not about being the same, it's about having what each other needs, the willingness to give it, and finding ways to mutually remain what each other wants and keep the feels as good as you can

Relationships are complicated, but just being the same won't help by itself

I eventually accepted that they were not going to change so I put us with things they are. Sometimes that can be frustration but the alternative was/is to end the relationship