No, I would not be OK with it unless this girl was a relative or some other very special circumstance. What's the point of doing that? What's the point of having a girlfriend if you're going to sleep over with other women? It's a precursor to cheating in my opinion, especially since they were more than likely sleeping in the same bed.
If you ever want to know if something is "OK" to accept or not, switch the situation around. See if your boyfriend would be OK with you sleeping over at another guy's house a few times, and even lying to him about one of them. I would bet my life he would never allow you to do this and would have dumped you had you done it once, regardless if he thought it was OK for him to do it or not. If a double standard like this arises in your relationship, you know you're being taken advantage of.
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Young guys are often ruled by their hormones. He probably likes you both a lot and would love to have sex with both of you. He's proved that he's having difficulty being honest and straight -- so don't expect that characteristic to change anytime soon. Ask yourself what you want right now. If it's exclusivity then I think you're with the wrong guy. If it's friendship and fun, then you might be in the right place.
Sounds like classic cheating behavior to me, or at least he's trying to get into girl A's panties. And sooner or later he will, the way they are going. If I were you I would just end it, it sounds to me like my dude wants an open relationship and you don't, therefore it can't work can it?
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You have to decide if your ultimatum (and him ignoring part of it) was a dumpable offence.
Decide if you still trust A or not.
If she knows how you feel and still invites him over, then it's clear she doesn't respect you.Why is he sleeping over at these girls home's?!
Yes,I would.
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