<human>: Can you provide a brief overview of the text?

Me and my boyfriend have been together for about 6 months, living together also and I've had the same discussion with my boyfriend many times, and it's just about him talking to other girls. I tell him that I don't like it when he talks to girls that are very pretty/hot because it makes me feel very self conscious and I feel that he's losing interest in me. He tells me that he hasn't lost interest in me, and then promised that he'd stop talking to other girls. He's actually rated me a 6 or 7/10 and these girls are like 9 and 10/10.

He goes back to talking to other girls 3 days later, and is basically secretive. He'll let me read his conversations, but there will be some that are deleted, it's pretty obvious to know that they are deleted. He's claiming that he's talking to these girls to "make me some friends" but I somehow highly doubt that's what he's actually doing. 

He actually told me that if I actually gave him the OK to have sex with another girl, he'd actually consider it and try to look for a girl. He would then say that after he would have sex with a girl, that it would mess with his conscious and make him feel really guilty. He even tried to get me to do a 3-some which, to me, is pretty obvious that it's just an excuse to have sex with someone else. 

Another thing is, he prefers to talk to girls that are like 16-20 and of course they're going to be all pretty/hot. He's had sex with several girls before me, and they were younger than him, one was 16 which I find gross, but legal consent age here is 16. He tells me that he prefers girls that are/look younger. I actually look like I'd be 16/17 and I just think that he's only with me because I look younger, but I'm turning 20 in may. I'm just thinking he's going back into old habits of having sex with other girls.

Does anyone have opinions for me on this situation? Because, I'm really at loss right now and I have no idea what to do.
<bot>: I feel like he's just trying to find other girls just so he can have more options. Need advice/opinions