racheli00- I hear your dilemma & this is definitely a problem. However, you shouldn’t let social pressure stop you. If you need that 3rd date to see where things are going- it’s ok- see each other again. It’s not the end of the world to say no after the 3rd or 4th time. If there’s a valid reason after 4 dates, then who’s to stop you??
Of course you need to consider the other person’s feelings and not dafka drag it out.
Also remember- some things can be resolved outside the date: speaking to parents, a Rov (Rebetzin), mentor etc. With this guidance, decisions on whether to continue or not are simpler and clearer.
Hatzlocha