<human>: Can you provide a brief rundown of the text in within 3 sentences?

Hello reddit ! I have been a long time lurker and i just need an insight into something that has happened recently. Thank you for taking the time to read my post! 
So I have been living with my boyfriend for a year now, but we are planning on living seperately next year as he finds that he doesnt have enough personal space. We are both currently attending college
.  Although my boyfriend has given me no reason to be suspicious, I find myself to be constantly overthinking and just afraid he will be unfaithful. He gives me access to his phone, facebook and email anytime. 
 The event: I went over to one of my girlfriends' for a sleepover a couple days ago. When i came back I found a condom missing and some swabs that are supposed to help you last longer. I found the swabs missing because they were brand new and i noticed them being opened, I count the condoms because i have found condoms missing previously(His previous reason was that it was a brand new condom so he wanted to open it and see what it was like.) His reason for the condom missing was that he wanted to see the difference in "smell" between the two types of condoms ,then later he told me he wanted to see how different it "feels." He even tried to prove it by showing me the box they came in but eventually he just showed me the pictures on them where one says thin and the other says ultra-thin. 
His reason for the swabs missing was that he wanted to try them out so he masturbated with it and one didnt work so he used two.Reddit whats your opinion? Im i overreacting?
<bot>: found missing condoms, boyfriend comes up with excuses that are slightly not believable, but boyfriend has otherwise given me no reason to suspect him of cheating. Im i overreacting?