<human>: Could you distill the essence of the text into 1-3 sentences?

My boyfriend let me know about a week ago that he's been acting distant to me because he's developed a crush on a female coworker and had been feeling really guilty About it. 

We talked about it, and he said he loves me and would never leave me for this girl. He doesn't understand why he feels this way about her and wants it to stop. I posted here last week about it and I understand it's totally normal to get little crushes on people you spend a lot of time with.

Ever since then I've been feeling really insecure. He's been great at apologizing and showing his love for me again, he seems to be fully committed to getting over this crush and fully coming back to me.

However, I'm really struggling to believe it, and I feel really insecure now and it's taking a toll on our relationship. I struggle to believe he actually loves me even when he tells me or does things to show me, I am scared he's just doing it to make me feel better. I'm scared of trusting him now, even though I know that's silly. I'm concerned he is just with me because I'm a 'stable' option and he is bored of me and that's why this crush thing occurred.

Looking for support on dealing with my feelings about this, and re-learning how to trust my boyfriend.
<bot>: boyfriend has crush on co-worker but has fully committed to me and apologized and is working hard to make sure I know he loves me, but now I'm struggling to believe he does. Help!