I'm not sure what the exact number is but when I checked my file I had 30 like for Gunnar and I could still invite him.
I had 28 and he came with me so maybe something like 25 is minimum?
OH! Thank you both for the info!
np if you have a lower number tell us and we might be able to find the real minimum if 25 isn't it XD
It was so easy to make him like me that i made it to the 30+ range to be sure
And because I got 24 like(starting at 8) just by doing 2 rounds of submitting to the guy.