1. Are they good, quality images? If not, then no regardless.
2. Are you interested in being hired for work that would require you to work with another male model (whether it's your boyfriend or not)? If so, then sure, show that you can do that kind of work.
3. Would you be comfortable working with someone who wasn't your boyfriend? If not, you might want to think about the restrictions of that.
4. Just a side note that I'm mentioning because of the wording, but do the photographers know you're bringing your SO before you show up with him? You seem professional from your profile and port, so I'm assuming they've given it the OK, just checking.