I've seen people on the Internet stressing a certain word using "*":

I do not *like* it, I *love* it!

I think there is no such punctuation as "*". So I'm wondering if I can use some other way to achieve the same goal in traditional English. I've tried quotation marks but then it sounds like I'm posing ironic effect.

I do not "like" it, I "love" it!

That sentence leaves the impression that I'm loving it in a unusual way.