Cheating?

Anon

So my boyfriend lives with me (I’m 17 and he’s 19) and we’ve always communicated on everything. Every time I’m leaving the house, I let him know so that he knows where I am if there’s an emergency. He usually does the same. We usually say where we’re going. Not in a controlling way, just so we’re informed. Recently he’s just been asking to ‘leave’ and when I ask where (just out of curiosity because as I said we usually always tell each other so it kind of throws me off when he’s vague) he hesitates and thinks about it for a second and says he’s ‘going for a walk’ and then asks for 2 1/2 hours (he’s usually gone longer than that anyways)

Am I looking too much into it or is he being a little sketchy? He also hasn’t even been asking for sex lately when we usually do ‘it’ once a day or he even just asks if I want to at least once. But not recently. At all. He also seems more distant, and he’s been spending more of his time in his room instead of mine, which is where he would normally spend all day

We live in a decently small town which is why the 2 1/2 hour walks seem shady to me.

I know I should just talk to him, but he can be extremely manipulative and he would just gaslight me. I just feel like I’m acting crazy honestly and I just need advice :/