My (F23) boyfriend (M25) is away for a business trip. He’s usually very good about texting— which took explanation on my part that I get anxious when long periods go between replies. He’s really great about understanding my irrational worries and validating my feelings. 
Yesterday, he didn’t answer me for 7 hours. I was pissed. My replies were short. There was another period where 20 ish minutes passed and I got no answer from him. I sent him a passive agreessive thumbs up and “k night.” He responds quickly “hey I’m sorry! I’m at a bar w coworkers yadda yadda yadda. I go to bed, trying and succeeding in not saying something bitchy. A couple hrs later he messages again at 1ishAm “I’m sorry I should’ve responded sooner. Are you mad?” And then 20 mins later calls. I’m asleep. 
In the morning, I feel guilty and lie and say I wasn’t 
mad and apologize for seeming so. 
Am I gaslighting? I’m lying and making him question the accuracy of his correct interpretation. 

(Side question)— do I have anything to be worried about? 
TLDR; got mad at boyfriend, lied about it later. 