If 'to text' is not yet in the Dictionary, then your boyfriend is wrong aswell, Angel41, since 'text' does not have a verbal sense, and therefore, by his own definition, is not a word.
I haven't seen the latest OED (Oxford English Dictionary) to see if 'text' (as a verb) is listed, but;
- If it's not listed, it will only be a matter of time, as the OED reflects our changing language.
- When it is listed, (or if it already is), it will tell you the past-participle of the verb and settle your argument for you.
Until then, use whatever you feel comfortable with, and aslong as everyone understands what you mean, what's the problem?
I think I tend to use 'texted' as well, come to think of it.