Can someone PLEASE and my question? Does it sound like my BF is cheating on me?

[DoctorWho]

*A coworker flirts with my BF. She's rumored to have slept with 6 or 7 other coworkers here in the last year or so. Most of who are married or somehow attached. He's told me he can't understand why I'd ever feel threatened by someone like her.
*Over the last few days FB has said my BF was "active" around 7:30 or 8 am. That's pretty early for him. He normally checks FB before he goes to bed then not again until lunchtime.
*He's cheated in a previous relationship
*He never gets mad if I bring up my jealousy/insecurity. He even said he'd try to help me boost my self-esteem, and would avoid the flirty coworker if i want him to. He's not jealous with me either. But I don't want to drive him away by being nuts.
*He lets me know, if he took a while to reply to a text, why he was delayed. Only once was there an unexplained an scene. But I let it go.
**We've been together almost 2 years and he's never pressured me for sex
*I told him I have an std and he didn't judge me and stayed anyway
*He can be very caring.
Please no flaming... I just want to end my worrying once and for all.
I meant, please answer my question.

[Undefined]

he is. I saw him banging someone.
Sorry

[Ryan]

i took three quotes from this....."He never gets mad if I bring up my jealousy/insecurity. He even said he'd try to help me boost my self-esteem, and would avoid the flirty coworker if i want him to." "He lets me know, if he took a while to reply to a text, why he was delayed" "We've been together almost 2 years and he's never pressured me for sex
*I told him I have an std and he didn't judge me and stayed anyway "

These quotes tell me he is a decent guy! and he is not cheating!