OK, I need help. I am weak and horrible, but dealing.

I have no idea why (well, b/c I am STUPID) but I snooped (for the first time in weeks) into Hs email. Turns out he's still emailing AND VISITING the Fcoworker--not that he promised that he would stop, nor did I ask. Pisses me off, b/c last week he was complaining that he was working so hard, so long, and he's just flitting with others and taking my sympathy. Turns out I think this may be more than I thought--I refused to believe it, but I think he may be in love with her...pursuing her and enjoying spending time with her. I never thought he could be more in love with someone else than me....but I am so dispicable right now. What is weird is that this was sent last week and this weekend was nice. Not spectacular, but really nice. I don't think they had sex...one reason is that he said he could not have unprotected sex with me after with her, and also b/c mostly, I know that he could not do that and not committ to her--too much to undo. What in the world do I know...maybe they are and I am just being stupid. I am freaking out....so, here are the emails...what do you think? Please, I'm losing my cool, and I need an opinion. Is this just a good friend or more? I think more...I think he really likes her...of course, he says they were just hanging as friends, but does that mean they had more at one point?

I am letting go....all the way this time. This is so hard for me. I have no idea how to ever trust H again. He is someone totally different...I don't know this person...he's in a fog right now. I don't know if he can come back. I don't think he has feelings for me. I don't know if I can trust him if he does. He'll never miss me, she is the person he will miss, from the emails, it's pretty obvious.
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H's EMAIL IN RESPONSE TO HERS BELOW:
"sorry about the pics...Had a great time last night...not that I'm surprised, but baby is really cute...hope I didn't disturb her by my mysterious presence.  Furthermore, I hope I didn't disturb you by my presence...just wanted to hang as friends.  I get the feeling that you may want 2 talk to me to let me know not to stop in on you again...if so, I understand.  Anyway, I'd love 2 talk.  I'm hangin w/ XX in XXX, then coming to do charts way late tonight.  I'll call u then.

I'll get u the money tomorrow so u can live large this weekend!

Hope ur day was good as well.

XXX
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HER EMAIL...ORIGINAL
"Hey, i couldn't open the pics you sent... i guess its a lost cause. Maybe, I could drop by to check it out on your computer. Oh well... How was your day? Busy? The last bill came in today... just to let you know. But i really think that we need to talk. what do you think? "X"