Guess so. The same thing always happens with me, especially when I want to play with my friends. It's a bit annoying, having to wait and spend about 10 minutes till somebody finally accepts your requests. Ask one of your friends if they'd like to play, and they'd message you back.
The least you have to wait is, from my experience, 1 minute. There are a lot of people playing. Strange why they wouldn't want to accept a bughouse game request when they want to play it themselves.
If it makes you feel any better, we can be friends and agree on a bughouse scheduling time.
I hope this helped.
Bughouse doesn't show up in open challenges. I create a challenge and sometimes I can't get a game at all. I'm sure people are playing. Do I just have to wait and hope a game starts?