Please help w/ relationship advice

Hi everyone, I’m literally up at 4am because I am thinking so much and I haven’t been able to talk to anyone about this. So to start off, me and my boyfriend have been together for about a year and a half. Throughout this time, I’ve never been on his phone and he’s posted me to social media about 3 or 4 times. To note, he used to post me in month 2-3 of our relationship. This is my biggest pet peeve about our relationship. Anyways, so the other day I saw a balled up CVS receipt and I unfolded it and I saw a 3ct pack of Trojan condoms for $20. We do NOT use condoms. Basically I called and asked why he bought them, and instead of answering he flipped and said “why are you going through my stuff”. When he did eventually answer, he said he bought them to keep in his wallet because he saw some video on TikTok. But today, I checked his wallet and it was empty. Please help me out here, I need someone else to give their opinion so I’m not just listening to myself. Thank you.