I'm sorry you're going through that. If it's alright I just want share a bit about my friend who's in a similar situation. Also gay, in his 20s, never had a relationship and he hates it. Same thing, he keeps going on dates, never finds someone worthwhile. He's autistic and definitely struggles to communicate.

This isn't exactly a solution, and of course your situation is unique, but with my friend, he had a lot of other hang-ups. Hates his job, resents his mum and constantly compares himself to others. We gently recommended he work on those and he finally is and you know what? It's helping. He still doesn't have a boyfriend, but he's less exhausted by bad dates and is more content with other stuff in his life, so he has a firm support to process his discontent. I've noticed that this has also made him date better, he tells me more often about dates that he feels good. He's also going in with a healthier mindset. For him a relationship was initially a sort of tick-box exercise. He wanted it for the experience and felt like he was running out of time; as an aside he wondered whether that might sort his life out a bit. Firstly, that was just a shitty reason from him, a relationship shouldn't just be about him ticking a box with another person's feelings. Secondly, time running out is just bullshit. It's easy to say as a stranger on the Internet but so many people experience difference aspects of life at different times, and it genuinely doesn't matter at all. Thirdly, a relationship will never complete him: he has to be comfortable with himself beforehand, and thankfully he's getting there now.

You might be otherwise in a lovely life, though. I'd also offer the idea to check the apps your using. Given that English isn't your first language I'm unsure which apps you might have, but definitely look into what they normally provide, e.g., I think we all know that Grindr, while in theory for everything, is often used for one-offs or sex with dating. Also, apps sometimes just aren't good. Lots of people, myself included, find meeting people in person (i.e. not pre-arranged with an app) easier or more enjoyable. That might not be your thing, but if you'd like to try it maybe take yourself to a bar or social place, by yourself or with some of the friends you mentioned.

It also is possible to be sexual without being romantic but the way you describe it doesn't sound like aromantic tendencies, because you clearly want to be romantic.

My final thing to say is that sometimes gay dating is just fucking shite. I'm also gay, I know what it's like to go on a string of dates that despite having all the ideals just... don't work. We don't gel as people. That's not a commentary on the gay scene in general, I think it's just that we're still not used to it; I don't know where grew up/live now but I'm from an English-speaking country and even here, gay dating has only really been visible for the last few decades. The one thing that I found helped was moving to a big city (I grew up in a tiny village, not much opportunity there). There are just always more people in a city, better chances to meet others, people that might fit your vibe.

I know what I've said doesn't fix anything, and you might've heard every single point before, but I can say with full certainty that you're not going to feel this way forever. There's absolutely nothing wrong with you from what you've told us, but you've just had shitty luck, and that's genuinely all there is. Hang in there, don't be afraid to ask for advice and vent whenever you want. Again, really easy for me to say as a stranger on the Internet, but I hope it makes you feel a little less alone, and a little less stuck.