My (18f) boyfriend (19m) had been off recently, could it be something I’ve done?

My partner “T” has been diagnosed with anxiety and depression, and has struggled with it since before we met. I’ve been mostly living with him since we started dating, and I’m worried that he might be over having me around so much. He had to have a piercing removed not long after we started seeing eachother because it kept catching in my hair and got infected. He recently got his nose done and had to remove it for the same reason. For the last week he’s been short with me, seems to really only want to have sex and then he goes back to watching tv or playing on his phone or asks if we can go outside to smoke. I’m worried that he’s gotten out of the “honeymoon phase” and decided I’m not as great as he thought.