<human>: I've been with my boyfriend for a year and a half. I don't have a lot of friends in general, but I find it especially hard to make male friends because all of the ones I've had in the past have taken an interest in me that my boyfriend was uncomfortable with. So I cut a lot of ties with them. I met a guy while working, and we got to talking and he's a graduate student/works at the school I want to transfer to. He left me his business card and told me to e-mail him and that he would show me around campus/give me a tour. 

Now I'm wondering...is it okay for me to e-mail him and ask for a tour in a friendly manner? I love my BF and I would never want to do anything that would hurt him. He knows that the guy left me his biz card and doesn't seem to be concerned. I would love to make friends especially since I'm about quite sure that's where I'll be next year, and I also want to make connections since I'll be entering the job market in 2-3 years. At the same time, I don't want my bf to think of it in the wrong way. Should I just pass on this opportunity to make a new friend/connection?

Thoughts? I would love to hear from men especially. Thank you!

Summarize the given text in a few sentences.
<bot>: in a relationship but met a guy who wants to show me a tour around the school i want to go to. is it ok for me to make friends and go, or should i avoid?