One of the possible alternatives yes. "Μου αÏÎσει" would probably be better in this case. However: In this case we are probably talking about facebook, twitter or some other social networking site. These sites are not always translated in Greek. And, often, they have ways for members to vote whether they like an answer or a theme or whatever or not.
It is therefore possible, if not probable, that "I like" refers to a clickable button or something that would give a positive vote to something or another.
I'm not sure we should translate it to Greek in this case.
Oh yes! thanks Irene!
yes, I've seen this "I like" on facebook.
So we'll leave it as it is, and we'll just add quotation marks so that this word won't be translated (I'll also leave a remark about it)