Should I trust him?

This will be a long one, sorry!

So a bit of backstory before I start this off: my ex and I first started seeing each other about a year ago, we tried dating for a while but neither of us felt like we were able to commit so we just stayed friends. About 6 months later, we end up being friends with benefits, until one night about a bunch of drinks he confesses that he loves me. Me, being super independent and not interested in any kind of relationship at the time, didn’t know how to feel about it, the next morning I reminded him of what he said and he said that he didn’t mean to say it and didn’t mean it because he was drunk. Fast forward to 2 days ago, we’ve been hanging out off and on for about a month or so only as friends. We go out with a bunch of friends at a bar for his birthday, everything’s going great and we’re having an awesome time. Throughout the night, we’re flirting back and forth, teasing each other... somewhere in the night, he brings up our past and asks me why we don’t hang out for often and why we never really tried to date again. I’ve always cared for him but never really thought we’d ever try to be together again..

So we talk a bit about it that night but I told him I’d rather seriously talk about it when we’re both sobered up. Late in the night, I stay over and we sleep together. The next morning my period came and I wasn’t prepared for it at all, he went to CVS as soon as they opened and bought me Midol and the pads that I often use- without me asking him! I was so humbled by it, I didn’t know what to think. We talk about our past a bit after that, and he told me that he loves me for me and only wants to be with me. He says he didn’t speak to me for so long after the last time we slept together because he thought I needed space after him confessing his love for me that night. I want to believe he really wants to he with me but I don’t want to get hurt if he changes his mind or if doesn’t really know what he wants.

Should I trust him? I feel like I should just play it by ear and be cautious with my feelings, but is that the right thing to do here?

Advice is super appreciated!