No second dates

Hi all, Honestly I don't know what's going on. For context l'm a big relationship guy but at 26 yo, but have been in ONS situations too.

However, I broke up w my gf 2 months ago and went on many dates with friends from before, exes, and dating apps in the past month.

Every single girl I went on a date with (except exes) gave me a kiss at the end, and was super into me during the dates. Then I told all of them that l'd like a second date and they always come back with "you're a very cute and sweet guy but I don't feel a romantic connection".

What the hell is going on? For context, I had 5-6 relationships, 3 of them being more than 1.5 years and they ALWAYS made the first move after being friends for a while, like I didn't even try with those, the girls just came to me and we dated.

I am not toxic at all and play no games, I think me knowing what l want, girls feel like they should give me an answer right away, which is "I don't feel a romantic connection". 1 even ask if there's anything specific and they never point it out, they just say they didn't feel the vibe even the most honest of them said the same thing...

Do I go back to play the toxic games and being an asshole? Because I am capable of that too but I find that being genuine is best.

After a 2.5 year long relationship with a woman 7 years older than me, I feel extremely burnt out from the immaturity of these girls l've been dating.

What am I doing wrong?